"What did four astronauts see, notice, and document as they traveled around the Moon during NASA's Artemis II mission?" asks a new NASA web page, offering some fascinating pictures and video: Through photographs, spoken observations, drawings, and annotations, the Artemis II crew created a unique scientific record — one that is now available to the science community and the public for further study... As part of the mission science plan, lunar scientists asked the Artemis II crew to watch for tiny flashes sparked by rocky fragments hitting the Moon. Even so, some scientists were astonished when astronauts reported seeing five extremely faint "pinprick" bursts of light from 46,000 miles away. After ruling out other sources — cosmic rays or reflections from the spacecraft — the science team confirmed the sightings... The impact flash observations happened during a planned loss of communications while the Artemis II crew was on the far side of the Moon... Apollo astronauts saw similar flashes from lunar orbit, but the Artemis crew likely caught the faintest ever seen with the unaided eye.

From the brightness of the flashes, scientists estimated that incoming rocks were each no more than a couple of inches wide. Despite their size, they were traveling thousands of miles per hour, producing just enough light upon impact to be visible. The nearly hour-long total solar eclipse that the crew experienced while passing by the Moon's far side created ideal dark conditions for spotting such subtle bursts. With no atmosphere to slow or burn up incoming debris, projectiles slam freely into the lunar surface. The crew's direct observations of this process on the Moon's far side provided a rare dataset that will help us understand how often these small impacts occur, which is essential for assessing long-term risks to future lunar habitats and infrastructure...

The crew reported seeing subtle hues of gray, black, brown, tan, white, green, and blue across the Moon's surface. This muted rainbow offers clues to the rocks and minerals that make up different lunar regions, helping scientists piece together how the Moon — and, by extension, Earth — evolved over time.
"Amazing news," Mission Control responded when they heard about the flashes. Space.com reports that when a Mission Control operator looked over at the Science Evaluation Room, "they were jumping up and down, literally."

NASA blogged this week that more than 800 gigabytes of Artemis II lunar science data — some previously unreleased — "have been uploaded to NASA's Planetary Data System, the public archive for NASA's planetary missions." This data release includes more than 11,000 full-resolution images and video of the Moon from the crew's handheld cameras and the Orion spacecraft's cameras, 8.5 hours of audio recordings of the crew's scientific observations of the lunar surface, and crew-annotated images... Along with this data, NASA has released the Artemis II Preliminary Lunar Science Report, the Artemis II Lunar Science Operations Report, and the Artemis II Lunar Science Data User Guide.

sciencehabit shares a report from Science Magazine: A physicist has put a definite date on Doomsday," The New York Times wrote on November 4, 1960. "He calculates that it will come on Friday the Thirteenth in November, 2026 A. D. On that date, or thereabouts, the human population will have expanded so far as to approach infinity and thus will automatically annihilate itself." The newspaper was right -- but the prediction was wrong. That week, Austrian American physicist Heinz von Foerster and two colleagues published a paper in Science with the stunningly succinct title "Doomsday: Friday, 13 November, A.D. 2026."

The work was based on a simple observation: The time it took for the human population to double in size kept getting shorter. Using population estimates from about 400 B.C.E. until 1958 C.E., the authors -- all from the department of electrical engineering at the University of Illinois Urbana-Champaign -- came up with an equation that best described the trend. If things continued the way they were going, the number of humans on Earth would rise faster and faster, reaching more than 25 billion by 2020. The researchers didn't calculate when humanity would run out of food, land, or energy. They just concluded that at some point this year, the equation ceased to give meaningful results because the predicted population shot toward infinity. That was their doomsday. "Our great-great-grandchildren will not starve," they wrote. "They will be squeezed to death."

The exact date was somewhat arbitrary, however. The formula solved to 2026.87 plus or minus 5.5 years, and The New York Times reported that von Foerster "searched the center of this doom-time span for an appropriate date and found that a Friday the Thirteenth would fall conveniently in November of 2026." (November 13 also happened to be his birthday.) [...] [D]emographers, annoyed by what they saw as a provocation by outsiders, pointed out obvious flaws. For example, the time it takes for the number of humans to double could get a lot shorter, but certainly not shorter than the 9 months it takes for a baby to develop. "In view of the comments that subsequently were published in this journal, an extensive discussion of this article does not seem to be required," public health expert Harold Dorn drily noted in Science 2 years after von Foerster's article was published. The forecast would set a record, he predicted, "for the short length of time required to demonstrate its unreliability." "The failure of the Doomsday equation is ultimately a cautionary tale about the dangers of extrapolating from historically exceptional circumstances," writes economist Javier Birchenall of the University of California, Santa Barbara writes in a Perspective published in Science today.

James Cameron's Avatar is no longer the highest-grossing movie in box office history. That honor now goes to the Disney/Marvel Studios film Avengers: Endgame. Variety explains: "Avatar" spent a decade as the biggest release ever until "Avengers: Endgame" overtook the record in 2019 during its initial run on the big screen. "Endgame" dropped to No. 2 on all-time charts in 2021 when "Avatar" returned to theaters in advance of 2021's "Avatar: The Way of Water." Five years later, and Earth's Mightiest Heroes have triumphed over the Na'vi again. Disney is popping Champagne no matter which big-screen behemoth claims the No. 1 spot. "Avatar" was released by 20th Century Fox, which Disney now owns after the companies merged in 2019... [Last week's] re-release of "Endgame" has generated more than $126 million worldwide.
Together the 38 Marvel Studios movies "have generated more than $35 billion worldwide," notes an announcement on Disney's web site, "making the Marvel Cinematic Universe the most successful film franchise in history."

Their announcement adds that Disney "is responsible for seven of the 10 highest-grossing films of all time." That list also includes James Cameron's Titantic and his first two Avatar movies, but also this summer's Spider-Man: Brand New Dayand the earlier film Spider-Man: No Way Home, plus Marvel's 2018 film Avengers: Infinity War. Also among the top-10-of-all-time are Star Wars: The Force Awakens (2015) at #7 and last year's Zootopia 2.

Meanwhile Coyote vs. Acme was released for rent or purchase on streaming platforms Tuesday, and became the No. 1 most-watched movie in the Apple TV store for America and Canada, according to CBR. (Citing a report from FlixPatrol ) "On Rotten Tomatoes, Coyote vs. Acme has a near-perfect 96% Certified Fresh Tomatometer score based on critics' reviews, and a similar 94% Verified Hot Popcornmeter score based on audience reviews... Frank Scheck from The Hollywood Reporter called it "one of the best live-action/animation films ever."

Preorders have just opened for its DVD and 4K disks, and Coyote vs. Acme is also coming to Blu-ray writes IGN, "along with some hilarious outtakes that he described as 'not PG-rated.'"

Celebrating the film's $100 million box office take last week, the movie's distributors posted a very Coyote-like koan on social media. "It's only over when you stop trying."

Spaceflight Now reports: "A SpaceX Falcon Heavy rocket launched from Florida Thursday night on a classified mission for the National Reconnaissance Office, America's spy satellite agency... The NRO has previously flown payloads on 22 Falcon 9 rockets but this is the first time it has used the heavy-lift Falcon Heavy, which consists of three Falcon 9 boosters and an upper stage, topped by a payload fairing.

The powerful rocket, which lifts off under the power of 27 Merlin 1D engines, was introduced to great fanfare in 2018 and made its 14th flight Thursday night... NROL-97 was SpaceX's third Falcon launch of the day. In addition to the Crew 13 mission, the company launched 130 payloads on the Transporter 13 rideshare mission from its West Coast pad at Vandenberg Space Force Base in California. It was the first time the company has landed four boosters in a single day.
CNN reports: As Starship flights ramp up, SpaceX has made clear that the company will phase out the use of two of its most iconic creations: the Dragon spacecraft, which ferries astronauts and cargo to and from the International Space Station, and the Falcon 9 rocket, which for a decade has dominated the global launch market.

These vehicles not only revolutionized the space industry in their own way, they're also still very much essential to ongoing work in Earth orbit, without clear backup options in place. The prospect of this loss is already spurring panic among some satellite operators, said Caleb Henry, director of research at analytics firm Quilty Space... Henry said he expects that most of the remaining space on board Falcon 9 rockets has already been sold and — beyond early 2029 — such flights may be reserved solely for the US government. Even NASA, which currently counts the Dragon capsule as the only US-made spacecraft capable of getting its astronauts to and from the ISS, has also acknowledged the looming retirement of SpaceX's workhorse vehicles....

Despite the success of Falcon and Dragon, a peek at SpaceX's business book may hint at financial reasons for retiring the vehicles. In its first quarterly earnings report, SpaceX revealed its space segment — which includes Falcon, Dragon and Starship — lost $542 million. By comparison, its Starlink internet and connectivity business made nearly $1.7 billion. Starship is expected to continue to cost SpaceX untold millions as it moves out of the prototyping phase. But one reason SpaceX is willing to bet big on Starship is that it's simply "much better" for achieving the company's own long-term goals, said SpaceX president Gwynne Shotwell at a recent conference. So it makes sense to shift resources toward the megarocket's future....

This rocket supply crunch has been looming since 2022, when Russia invaded Ukraine — which immediately removed Russia's Soyuz and Proton rockets from the commercial market, Henry noted. On top of that, Amazon — which is deploying a space-based internet constellation to rival SpaceX's Starlink — stepped in to buy more than 100 launches from various rocket makers.... Though some satellite manufacturers are hopeful that space onboard future Starship launches will be offered to satellite operators, it's not clear when or if that will happen.... It is possible that a launch supply crunch could be averted, noted Micah Walter-Range, a space analyst and contributor to the VettaFi Space Index. But satellite operators may be wary because newer rockets that have for years promised to step up to compete with the Falcon 9 have not yet begun flying with any regularity.

"The space industry hates uncertainty, particularly when it comes to planning of launches," Walter-Range said.
The article notes that Rocket Lab, Firefly Aerospace, United Launch Alliance, and the Jeff Bezos-founded Blue Origin "have not yet reached the scale or launch cadence that the industry is demanding."

Longtime Slashdot reader Geoffrey.landis shares a report from NPR: Google just put a refrigerator-sized satellite into space, part of a research project the company hopes can pave the way for orbiting AI data centers powered by the sun. The prototype satellite has four specialty chips in it called Tensor Processing Units, or TPUs, that Google designed for machine learning and has already deployed in data centers on Earth. The chips will run a version of the company's Gemma AI model for 15 minutes at a time due to heat management constraints, using the open weight model to answer simple queries.

In a blog post, Google said the mission will gauge how the TPUs handle "the physical stress of spaceflight and the radiation and thermal extremes of space." The satellite launched October 1 is a prototype that Travis Beals, senior director and lead of Project Suncatcher, called "a very minimal test" to make sure the chips can run in space. A SpaceX rocket carried it into orbit, and Planet will get it up and running. Beal said Google will then fire up and test the TPUs. The goal is for the mission to be operational for a year.

New research suggests Enceladus may be an especially promising place to search for extraterrestrial life: microbes similar to those found near Earth's hydrothermal vents survived in lab conditions designed to mimic the Saturnian moon's subsurface ocean. A separate study also found that material blasted from Enceladus' plumes may naturally separate and concentrate salts, organics and potential biosignatures into individual ice grains, potentially making them easier for future spacecraft to detect.

"That is great news in the search for life," Frank Postberg, lead author of one and co-author of the other of these new studies and professor at Freie Universitat Berlin, said in a statement. "Future spacecraft will have to analyze many individual ice particles in the plume. But if they come across one with microbial material in it, they could identify biosignatures in the particle relatively easy with already available technology." Space.com reports: Enceladus isn't the only place in our solar system with water -- so, why is it so exciting in the search for life? Well, it has to do with the seafloor of its extensive, liquid ocean. Down deep at the bottom of this body of water, scientists think hydrothermal processes, or movement or reactions with hot water under the surface, are taking place. The plumes shooting upward from the ocean also contain trace amounts of salts and organic compounds. NASA's Cassini spacecraft found these traces when it flew through the plumes over a decade ago. Between the hydrothermal activity and the organics and minerals in the water, this moon's ocean has a number of aspects that could be involved in supporting life.

What's more, using a combination of Cassini data, theoretical models and laboratory experimentation, in Postberg's new study the team found that the plume's water droplets blasting out into space at up to 621 miles per hour (1,000 kilometers per hour) don't freeze as quickly as expected. Before, scientists thought the freeze would happen instantaneously once the droplets reached space, but Postberg and fellow researchers say they found the freezing would actually happen much slower.

They also found that during this freezing process, the salt, organic compounds (and maybe possible signs of life) in the water droplets separate from one another. Not only that, but the team says that as the particles are blasted out into space, they should often collide with the icy cracks of the planet's surface. This ultimately would leave behind tiny shards of frozen droplets with individually separated out components. Essentially, it's like the planet has organized its oceanic ingredients into tiny, frozen particle fragments. This work is described in two new studies published in the journal Science Advances here and here.

SpaceX's Starship reached orbit for the first time, successfully deploying 26 operational Starlink V3 satellites after overcoming an early Raptor 3 engine shutdown during ascent. "SpaceX plans to eventually deploy 100,000 upgraded Starlink V3s to expand the company's wireless satellite internet services," notes Space.com. Here's the latest update from the report: SpaceX has decided to return Starship from orbit earlier than expected. After valuating the upper stage Ship's status during its first orbital checkpoint, SpaceX technicians have decided to return the spacecraft to Earth earlier than expected. Rather than spending another 7.5 hours on orbit, Ship 41 will perform its deorbit burn at approximately 11 a.m. EDT (1500 GMT), with splashdown in the Northern Pacific. You can watch a recorded livestream of the launch on X.

Developing...

"Weird Al" Yankovic's name has just been approved for a new asteroid — (14331) Alyankovic = 1981 EC26 — by the International Astronomical Union, reports Space.com.

Yankovic's asteroid was championed by planetary scientist Allison McGraw joined by "several heavy hitters in the planetary science field, according to the Tucson Star. (Astrophysicist Steve Desch from the School of Earth and Space Exploration at Arizona State University; Tim McCoy, one of the main curators of meteorites at the Smithsonian Institution; and University of Arizona research scientist Melissa Brucker, leader of the Spacewatch program, which has discovered more than 179,000 asteroids.) The scientists also convinced the International Astronomical Union to name an asteroid after one of Yankovic's major influences, famous musical humorist and political satirist Tom Lehrer, who died last year at age 97. Lehrer's work includes "The Elements," a 1959 song in which he recites the entire periodic table to the tune of Gilbert and Sullivan's "Major-General's Song." "He was a mathematician and teacher and also wrote math- and science-themed songs," McGraw said. "We felt that someone who had that kind of science enthusiasm really deserved to have their name up in the sky...." McGraw is hoping that naming space rocks after stars like Lehrer and "Weird Al" will cast some reflected light on two things she's passionate about: asteroid research and science communication.
Six years ago a 92-year-old Tom Lehrer released all his lyrics into the public domain. (Wikipedia notes he'd "largely retired" by the 1970s to become a mathematics teacher at the University of California, Santa Cruz.) Slashdot ran a brief career retrospective when Lehrer died last year at age 97.

And the IAU writes that "Generations of scientists have been inspired" by Weird Al Yankovic's "comedic musical works, including 'It's All About the Pentiums' and 'White and Nerdy'." ("I'm fluent in JavaScript as well as Klingon," Yankovic sings in the latter.) He appears in a song envisioning a rap battle between Bill Nye the Science Guy and Sir Isaac Newton... And in 1999 he recorded a five-minute summation of Star Wars: Phantom Menace, sung to the wistful tune of Don McLean's American Pie. Performing it last month in a NPR Tiny Desk concert, "most of the audience was singing along," remembers an interviewer at NPR. "It felt like something that was very personal to them." Weird Al: It's one of those songs that means a lot to people, particularly "Star Wars" fans, of course. But I mean, I see a lot of people in the audience cosplaying as Jedi Knights and waving their light sabers... I've even heard that, you know, they play that song at "Star Wars" conventions, and people get weepy... [I]t really hits people in a tender place somehow...

"Oh my, my, this here Anakin guy
may be Vader someday later, now he's just a small fry.
And he left his home and kissed his mommy goodbye,
sayin' soon, I'm gonna be a Jedi."
Yankovic has led a geek-friendly career. In the heyday of Napster, he released an anthem-style parody mocking the arguments of the Recording Industry Association of America, titled "Don't Download This Song. ("Even Lars Ulrich knows it's wrong...")

"Once in a while maybe you will feel the urge
To break international copyright law...
you start out stealing songs, then you're robbing liquor stores
And selling crack and running over school kids with your car..."

As a student at Cal Poly, San Luis Obispo, Yankovic bootstrapped a career in 1979 by recording his first novelty song "My Bologna" (a parody of "My Sharona" by the Knack) while playing his accordion in a bathroom for its acoustics. And even the IAU acknowledged the geeky themes in his 1999 song "It's All About the Pentiums" (a filk on Puff Daddy's "It's All About the Benjamins").

"You're usin' a 286? Don't make me laugh
Your Windows boots up in what, a day and a half?
You could back up your whole hard drive on a floppy diskette
You're the biggest joke on the Internet..."

Longtime Slashdot reader fahrbot-bot shares a report from ScienceAlert: Scientists have now demonstrated one of the weirdest forms of ice yet -- under preposterous pressures up to 2.3 million atmospheres, and tremendous temperatures up to 2,630 kelvins (2,357 degrees Celsius, or 4,274 degrees Fahrenheit). [...] In their new experiments, a team led by physicist Alexis Forestier of the French Alternative Energies and Atomic Energy Commission subjected tiny samples of water to the sorts of extreme conditions expected in the interiors of ice giant planets.

They squeezed the samples between the tips of diamonds to pressures as high as 230 gigapascals, while using lasers to heat them to thousands of degrees. That's 2.3 million times Earth's atmospheric pressure at sea level â" the pressure at the center of Earth, for context, is around 360 gigapascals. Then, using an extremely narrow beam of synchrotron X-rays, they probed for changes in the crystal structure of the ice.

What emerged was a configuration predicted theoretically but never unambiguously observed in experiments: hexagonal close-packed, or hcp, ice. As the hcp crystal was heated, its expansion also showed a signature of superionic behavior, suggesting it entered the superionic state at around 1,700 kelvins. [Superionic ice is thought to exist deep inside Uranus and Neptune, where its unusual properties may play a role in generating the planets' equally unusual magnetic fields.] The findings have been published in Physical Review Letters.

A new study published Friday in AGU Advances "depicts the most advanced picture yet of how a rare but massive solar storm could affect some US industries and electric systems more than others," reports CNN.

"During a 250-year solar storm, the East Coast would have widespread potential for grid failure." Researchers modeled what a Carrington Event — a 1-in-150-year geomagnetic storm or even rarer — could mean for the modern day. They estimate the US economy would lose about $1.5 billion to $2 billion per day from direct and indirect costs, as millions of people face power outages. The findings show the most vulnerable areas are the Northeast and the Northern Plains, especially locations at higher latitudes.

No one knows when the next big storm will hit. While the most severe geomagnetic storms are labeled as once-in-a-century or rarer, these events don't follow a fixed schedule. "That timing only averages out on very long timescales," said Anna Kelbert, a geophysicist at the Harvard-Smithsonian Center for Astrophysics, who was not involved in the study but previously studied solar storm effects on power grids. "The event can occur at any time, as soon as a week from now, or centuries later...." [Shawn Dahl, service coordinator at the Space Weather Prediction Center operated by the National Oceanic and Atmospheric Administration in Boulder, Colorado], said the sun is now coming down from a period of heightened activity, which is also when some of the biggest storms to hit Earth have occurred in the past. "We still need a lot of work to be ready...."

"We haven't really seen events like this size in the modern era, where we've had all of this high technology and we've had the power grid of this size," said Ed Oughton, researcher at George Mason University and lead author of the new study... Because the US grid's actual structure is proprietary for security reasons, the team used engineering models to create various network and transformer setups including the 10,464 substations and 16,256 transmission lines found across the country... The grid structure also contributes to higher risk in some areas. For instance, the eastern US is linked together in a single grid interconnection. A voltage issue in Maine, if not isolated early, could cascade through the grid to Washington, DC. The West works similarly, whereas the Texas interconnection operates mostly within the state...

Power is restored over time depending on any alternative electrical paths that could bypass the substation or availabilities of spare transformers, for instance. "This nationwide analysis shows that we are currently ill-prepared to face a major magnetic storm, and that the societal impacts would be catastrophic," Kelbert said.
"The study estimates power disruptions for 5.1 million people and 135,000 businesses," according to the article, and "The outages could last from hours to days to weeks depending on the damage and resources available to get back online, said Oughton."

The United Nations has an announcement. "The UN General Assembly has voted overwhelmingly to encourage governments, schools and tech companies worldwide to stop using maps that make Africa look far smaller than it really is." By 164 votes to one, Member States on Friday endorsed a resolution promoting map projections that more accurately reflect the true size of continents — the culmination of an African-led campaign against the 16th-century Mercator projection, still the most widely used map in the world. The United States cast the sole vote against, dismissing the initiative as part of a "radical ideological project." Six countries — Estonia, Georgia, Lithuania, Moldova, Serbia and Ukraine — abstained.

The resolution does not ban the Mercator projection or impose a replacement. Instead, it encourages governments, schools, international organizations and technology companies to use the Equal Earth projection and other so-called equal-area maps when relative size matters, and to teach the limitations of any flat map in representing a spherical planet.

Behind that seemingly technical debate lies a larger argument about history and power: whether a map designed for European sailors in the 16th century has, over generations, distorted not only geography but perceptions of a whole, vast and complex continent... [With Mercator maps] landmasses appear increasingly enlarged the farther they are from the Equator. Greenland, for instance, can look roughly comparable in size to Africa, even though Africa is about 14 times larger. Northern Europe and North America are similarly magnified, relative to equatorial regions. Despite its original navigational purpose, Mercator remains common in educational, media, digital and official materials. The resolution says those distortions have contributed to the "symbolic minimization" of Africa and perpetuated an unbalanced view of the world...

Equal-area maps do not make Africa larger; they remove the exaggeration Mercator gives landmasses closer to the poles.
The UN notes that hours before the vote, France's foreign minister announced the country was planning to abandon Mercator for its maps of the world.

NASA has awarded Blue Origin a contract worth up to $700 million to build and operate a dedicated Mars telecommunications network for current and future missions to the Red Planet. Blue Origin is expected to deliver the spacecraft by the end of 2028, with the network targeted to become operational by 2030. From a press release: Blue Origin will design, develop, integrate, launch, and operate the network as a part of the agency's broader space communications and navigation infrastructure. The architecture will consist of a high-performance telecommunications spacecraft orbiting Mars, transmitting science data, imagery, navigation information, and critical mission communications for spacecraft operating on and around the planet.

The award marks a milestone in NASA's strategy to expand communications and navigation services beyond Earth and the Moon, establishing the foundation for sustained exploration of Mars in the coming decades.

SpaceX is scheduled to launch the Roman Space Telescope on a Falcon Heavy rocket, with the launch window opening at 7:26 a.m. EDT (1126 GMT). NASA will carry the launch live on YouTube.

CNN offers this mission overview from NASA Administrator Jared Isaacman. "Roman will investigate dark matter, dark energy and the structure of the universe itself, and accelerate the future of discovery of potentially habitable planets outside our solar system." In fact, "NASA anticipates that Roman will image more than 50 times as much of the sky in the next five years as Hubble covered in three decades," reports USA Today, noting that "every single image it beams back to Earth will contain the equivalent of 100 pictures Hubble would capture." The barrel-shaped Roman telescope is due to set up operations nearly 1 million miles from Earth and begin scouring previously unobservable areas of the cosmos... NASA will make all of Roman's data available for anyone to peruse, meaning astronomers from all over the world will have the opportunity to make use of the observatory for advanced research, NASA says... Spanning 42 feet long and more than 14 feet wide, the Nancy Grace Roman Space Telescope is outfitted with two primary instruments
Its 300-megapixel near-infrared camera is built to look across the universe and study the three-dimensional distribution of dark matter, reports The Conversation. But it's also carrying a coronagraph instrument built to dramatically reduce the glare from distant stars "that will test the technology for future missions that plan to detect Earth-like planets around other stars."

The mission's generating some excitement. "Nearly three decades after dark energy's discovery, astronomers are letting themselves hope that a breakthrough is almost at hand," writes Scientific American, adding that cosmologists "are increasingly questioning the validity of their vaunted standard model, although no one can decide exactly what comes next." Roman will chase down three different ways of detecting dark energy, seeking to more precisely define what its effects on the universe are and whether they're changing over time. The first one involves surveying the skies for a special variety of supernova that's so predictable that scientists can use it as a beacon for calculating what a host galaxy's distance is and how fast it's moving away from us — the same technique that first betrayed dark energy back in the 1990s. The second entails mapping large numbers of galaxies to discern huge, faint bubbles in the cosmos that represent the fossilized signatures of sound waves that froze out of the universe's primordial plasma as it expanded and cooled. The sizes of those bubbles scale with the size and growth of the very early universe, offering a powerful probe for studying cosmic change over time. The third tracer uses a technique called microlensing, which reveals clumps of dark matter via their warping of background starlight, to fill in scientists' still incomplete reckoning of matter's cosmic distribution.
The Houston Chronicle reports that the telescope will also study rogue planets, isolated black holes, starquakes and planet-forming disks around nearby stars. "Almost regardless of what your scientific interest is, Roman is probably already planning to take observations," Julie McEnery, Roman's senior project scientist at NASA, said during a July news conference."
NBC News reports that after the Roman telescope launches, "it's set to spend more than three months journeying to its final destination, located roughly 1 million miles from Earth." Three primary surveys are planned over the course of the Roman telescope's mission. During the largest one, which will last over a year, the telescope will peer through the Milky Way's dense, star-packed center, known as the galactic bulge, building a vast catalog of all the astronomical objects it observes. The second and third surveys will focus on dark matter and dark energy.
Axios notes that Roman's primary mirror "is about the same size as that of Hubble's, but at 80% less weight — reflecting huge tech advancements since Hubble was built in the 1970s." And NPR reports NASA began planning the $4.3 billion telescope 15 years ago to search for supernovas to help explore dark energy — when "a call came in from the government office in charge of surveillance satellites." "The National Reconnaissance Office reached out to NASA," [remembers cosmologist Daniel Scolnic at Duke University], "saying, 'We have this amazing satellite sitting in a hangar that we're not using. And what what do you guys think about instead of pointing downwards, we point upwards, and you guys use it?'" NASA said yes. It took some substantial modifications, but now that old satellite is set to become NASA's next major space observatory....

Another goal of the telescope is to spend a month surveying all the stars in the Milky Way galaxy. Julie McEnery is Roman's project scientist. She says even though Roman has broadly the same sensitivity and sharpness of vision as the currently orbiting Hubble Space Telescope, its design lets it do things much faster. "That one month of observations to survey our Milky Way galaxy would take about a century with Hubble," says McEnery.

The Los Angeles Times first calls Ridley Scott's newest movie "a postapocalyptic thriller that trades zombies for pandemics and asks whether hope can outlast catastrophe." But besides The Dog Stars, Scott is also working on an adaptation of Robert Louis Stevenson's "Treasure Island" starring Hugh Jackman, and is thinking about turning one of his past films into a musical. ("I can't tell you which one because they're being difficult.") The common theme, they suggest, is a director who allows his stories to "speak through evocative, immersive images rather than unnecessary exposition." The British director says it's because he got his start in advertising after attending the Royal College of Art in London. After 1982's neon-coated sci-fi thriller "Blade Runner," Scott notably made the iconic Apple Macintosh computer ad "1984," a memorable Orwellian-themed clip that contained suggestions of the dystopias that would continue to fascinate Scott in his filmmaking. "Advertising in England at that point became a competitive art form," he says, pointing to the notorious "Adland Five," a group of directors that included Hugh Hudson, Adrian Lyne, Alan Parker, Scott and his brother Tony. "I've got a show reel which is 50 years old which would entertain the s — out you. Hasn't aged at all. Our visual drive changed the face of how films looked."

That's apparent in Scott's latest, "The Dog Stars" (in theaters Friday), a film about survival after the end of the world. It's based on Peter Heller's 2012 novel and set in Colorado 10 years in the future after an aggressive flu has decimated much of the population. Those remaining alive use any means necessary to stay that way, resulting in instability, brutality and, more hopefully, connection... These days, Scott develops movies with his production company, Scott Free, which he founded with his late brother Tony in 1995. Before that he says he struggled to find good scripts. And rarely has someone handed one to him. "I've only ever had three films land on my desk," he says. "One was 'Alien,' which I was fifth choice for after Robert Altman." He makes a face. "Can you imagine offering Robert Altman 'Alien'? How stupid can you get?"

Another was 2015 space adventure "The Martian," which Scott says had been sitting on a shelf for two years before it was sent to him. Scott's grounded, semi-comedic take on Andy Weir's novel resulted in seven Oscar nominations. The third screenplay to materialize was "The Dog Stars." "I read it and I was blown away," Scott says.
Deadline notes that Scott is already re-writing the third prequel to Alien, citing Scott's comments to French outlet AlloCiné. "The one that just came out [2024's Alien: Romulus] was OK. I think it needs some help. So, I've gone back in." Scott continued, "I've already got a footprint for the next Alien.... I'm picking up where we left off in Covenant with Micheal Fassbender, who now thinks he's Ozymandius." With the sequel bringing back Fassbender's futuristic AI droid, Scott sees an opportunity to explore the repercussions of artificial intelligence in our current world. "I like the fact that AI has gone off the rails," said Scott of where the character is at the end of Covenant. "If we go AI, the moment we discover it's off the rails is too late. It could switch every digital thing off in the world like that. You'd have fucking chaos. It's that kind of stuff that's scary."
Scott tells the Los Angeles Times that the malfunctioning AI character fascinates him, and in the movie will be creating a "brave new world for himself... AIs can go off. And if they do, it's like a bomb..." So far, Scott says he hasn't implemented AI technologies into his filmmaking. He holds up his "Treasure Island" Ridleygrams [hand-drawn storyboards] and shakes them at the camera. "I can compete with an AI without any problem making images," he says. "But it's coming, inevitably."

Scott was not involved in the forthcoming Prime Video series "Blade Runner 2099," out in November. "I can't blame my lawyers and my agents at that time, but somehow we let 'Blade Runner' go," he says. "And when you're not the author of the actual written word, you don't have a piece." (He was more involved in Noah Hawley's recent "Alien: Earth" series, which he calls "pretty damn good....")

Does that mean he thinks about his legacy as a filmmaker? He does, but not often. "When you think of your legacy, you're too near the end," Scott says. "I'm not near the end." He looks up from his drawings. "I've had a riotous time," he says. He corrects himself: "I'm having a riotous time."

President Trump awarded the four-member Artemis II crew the Congressional Space Medal of Honor and signed an executive order directing the creation of a new U.S. Space Academy. The proposed academy would train engineers, scientists, technicians, operators, and astronauts for NASA, the Space Force, and the commercial space industry. Houston Public Media reports: The Artemis II crew -- NASA's Reid Wiseman, Victor Glover, Christina Koch, and the Canadian Space Agency's Jeremy Hansen -- retraced history as they flew around the moon and back in April, the first time humans have been in lunar territory since the 1970s. He had previously hosted the crew members at the White House following their mission and called them during the mission while the crew was tens of thousands of miles away. "The one thing that really sticks out to us [from that call] is you said how proud you are and how proud our nation is for the job that we've just accomplished," Wiseman said during Friday's ceremony. "And for us, that is what we set out to do. We wanted to inspire this nation to learn."

During the ceremony, Trump also signed an executive order to create the "United States Space Academy." Under the order, a Presidential Commission on the U.S. Space Academy has 120 days to create a report with guidelines for the U.S. Space Academy. The Commission will include NASA Administrator Jared Isaacman as its Chair, as well as other NASA and space officials. Secretary of Defense Pete Hegseth, Trump's Chief of Staff Susie Wiles, and Michael Kratsios, assistant to the president for science and technology. In effect, it allows the Trump Administration to build the U.S. Space Academy to its liking. "It will serve both the United States Space Force as well as NASA and the civilian spaceflight industry," Trump said. "And it will attract, train, graduate the very best that our nation and our nation really has to offer." As for where the academy will be located, Trump said he was "going to be choosing a location very shortly."

Remember that rush rescue mission for NASA's $500M space telescope? It failed, reports CNN, and the LINK satellite won't be able to boost the telescope's orbit. NASA says its decades-old Swift telescope will now continue losing altitude, until it reaches Earth's atmosphere later this year and burns up.

CNN reports: Just weeks after LINK lifted off on July 3, it started to spin out of control. [Satellite designer] Katalyst was able to regain control of the satellite, but the company acknowledged that the issue cost it time, which would delay LINK's rendezvous with Swift by about a month. However, that postponement — at least initially — did not seem to be a deterrent to the mission. Now, NASA and Katalyst have announced that LINK's mission will not capture and boost Swift to a higher orbit "due to ongoing attitude control issues," according to statements Wednesday.

"NASA should be willing to move quickly and take smart risks when the potential return is worth it, and that is exactly what we did with this mission," NASA Administrator Jared Isaacman said in a statement. "This is not the outcome we were working toward, but it does not change why this mission was worth attempting. The team moved with extraordinary speed to give Swift a chance to carry out more science while advancing capabilities America will need for satellite servicing in the future...."

The mission team is forging ahead with its plan for LINK to rendezvous with Swift — but as a demonstration rather than a rescue. "We are going to learn everything we can from LINK's rendezvous attempt and put those lessons to work on the missions that follow," Isaacman said... Swift wasn't designed to be serviced in space, which means that insights from the demonstration could be used for future missions... "We have already learned a tremendous amount," [said Ghonhee Lee, CEO of Katalyst Space Technologies], "and now our job is to turn those lessons into something durable — building a repeatable playbook to inform future rendezvous and proximity operations and satellite servicing."

China's Chang'e 7 mission is set to launch for the moon's south pole, where it will attempt the first-ever landing directly at the pole and search the region's dark craters for water ice. "It's an amazing mission," says Norbert Schorghofer, a Hawaii-based senior scientist at the Planetary Science Institute. "There has never been a landed mission to find water [on the moon]." If successful, China "will be the leader in lunar science," Schorghofer adds. Scientific American reports: Chang'e 7, China's seventh moon mission, is scheduled to launch on a Long March 5 rocket from the coastal Wenchang Space Launch Site on the island of Hainan, with the launch window opening on the morning of August 24 local time (the evening of August 23 EDT). The mission includes an orbiter, as well as a lander, which totes a rover and a novel "hopping" robot. The spacecraft will take up to six days to reach lunar orbit, where it will then spend two months preparing for a November landing meant to be a near bull's-eye on the lunar south pole. The mission also includes equipment from several international partners, highlighting China's growing global influence -- both on and off Earth.

The mission's lunar target is Shackleton Crater, a 21-kilometer-wide (13-mile-wide) pit with a rim that grazes the moon's south pole. No other spacecraft has ever landed so close. That proximity should allow Chang'e 7 to prospect for water ice trapped in smaller depressions near Shackleton that, because of the moon's tilt, never see sunlight and have temperatures just a few dozen degrees above absolute zero. "There are big reservoirs of ice water at the poles," says Simone Dell'Agnello, a physicist at Italy's National Institute for Nuclear Physics.

No one knows, however, just how big those reservoirs are or what their actual distribution is across the lunar south pole's crater-pocked desolation. And because that ice might be used as for manufacturing rocket fuel or to make potable water for thirsty astronauts, answering those questions is key for the U.S.'s and China's competing plans to construct crewed lunar outposts.

"We are in a 21st century space race," U.S. Senator Ted Cruz has said. And this week CNN noted a competition that for decades loomed in the background of geopolitics "is now roaring to the forefront," with China "demonstrating rapid advances in space technology" while the U.S. is "ratcheting up rhetoric about a looming battle for control of the cosmos." It's the fact that China plans to build a permanent settlement on the moon by 2040 that has prompted an urgent response from [U.S.] lawmakers... They've declared a new space race, and NASA is pledging to build a lunar outpost of America's own.... Both the United States and China plan to send robotic explorers to the south pole later this year, paving the way for human explorers to follow close behind.

The US is relying on the private sector to develop and build low-cost, exploratory robotic landers... Meanwhile, China is aiming to launch its robotic Chang'e-7 mission as soon as this month. The complex endeavor will seek to use four different robotic vehicles — an orbiter, lander, rover and mobile "hopper" — working in tandem to attempt to gather unprecedented data. The effort will include tools to drill for and directly analyze water ice, a feat that the US will only attempt with robotic missions slated for next year at the earliest. "If lunar water ice is successfully located, it could significantly reduce the cost and time required to transport water from Earth, facilitating the establishment of a human base for long-term activities on the moon and enabling further exploration of Mars or deep space," Tang Yuhua, the deputy chief designer of the Chang'e-7 mission, said in a 2025 interview with state media.

The oncoming flurry of south-pole-centric activity, with few established international laws to govern the outcomes, is heightening the drama of this rivalry... But with a much more ambitious goal — a future in which people attempt to flourish within permanent settlements rather than just visit the moon — the stakes of this new space race are even higher, according to Clayton Swope, the deputy director of the Aerospace Security Project at the Center for Strategic and International Studies, a bipartisan nonprofit. "The long-term vision will take generations to execute on," Swope said. "But in my mind, it's a scenario where there are people being born, people dying, their families, children growing up in a place that is not Earth — so that looks a lot like a city, more than it looks like an expedition to the south pole." If such a future comes to fruition, Swope added, his hope is that such extraterrestrial colonies would be governed by rules reminiscent of Western ideals and democratic principles. Whether China would be on the same page is an open question.
China is already fine-tuning its plans for a lunar settlement, CNN writes: The country envisions the International Lunar Research Station, or ILRS, as a sprawling science-focused facility on the moon's surface that can be operated robotically, "with the prospect of subsequent human presence," according to a government's ILRS website. China could partner with Russia to build a massive nuclear reactor to power the base, though questions remain regarding how the war in Ukraine may impact Russia's ability to deliver... China and Russia were mapping these plans long before the US announced its own intention to build a nuclear reactor on the moon last year and detailed its plans for a lunar settlement spanning hundreds of square miles... Who will write the rules? And how, exactly, will the use of lunar resources be policed on the international stage?
Meanwhile, NASA "still does not have a vehicle capable of getting astronauts down to the lunar surface," the article points out: Returning to the moon is not as simple as repeating Apollo. The space agency cannot — and does not wish to — replicate its 20th century lunar-landing success. The supply chains, skilled machinists and factories that built Apollo's rockets, landers and command modules no longer exist. And while the Apollo landings stuck close to the lunar equator, landing near the south pole is substantially more complex and requires more powerful vehicles.... China, meanwhile, has been laser focused on its lunar exploration program since 2004, using its top-down, central planning system to keep resources flowing toward specific goals.

An anonymous reader shares this report from Space.com: On Saturday evening (Aug. 15), SpaceX set another mark, for the shortest time between orbital flights: It launched two Falcon 9 rockets just 38 minutes apart, besting its old mark — set on Aug. 31, 2024 with two Starlink missions — by 27 minutes.

The first liftoff, from Florida's Cape Canaveral Space Force Station, occurred Saturday at 9:12 p.m. EDT (0112 GMT on Aug. 16) and carried eight satellites to low Earth orbit (LEO) for Louisiana-based telecom company Globalstar. All eight spacecraft were deployed successfully, separating over a six-minute span beginning 56.5 minutes after liftoff, SpaceX announced via social media. While that Falcon 9 was powering its way to low Earth orbit, another one launched from Vandenberg Space Force Base, on California's central coast. That liftoff, at 9:50 p.m. EDT (6:50 p.m. local time; 0150 GMT on Aug. 16), kicked off a mission for the U.S. Space Force called USSF-366...

Both of Saturday's missions featured successful rocket landings. The Falcon 9 first stage that launched the Globalstar mission came back for a touchdown at Cape Canaveral about eight minutes after launch. It was the 14th flight for that particular booster. The USSF-366 Falcon 9 first stage, meanwhile, came back to Earth about 8.5 minutes after its launch, touching down in the Pacific Ocean on the SpaceX droneship "Of Course I Still Love You." That booster now has 18 missions under its belt.

Saturday's doubleheader brought the tally of Falcon 9 launches in 2026 to 96. The vast majority of those — about 75% — have been Starlink missions.

Phys.org reports: Future fusion power plants aim to recreate the heart of a star here on Earth to power our future energy needs. While the core fusion plasma will burn at hundreds of millions of degrees, the surrounding structural components must handle sudden, punishing heat loads that rival the extreme temperatures faced by spacecraft upon reentry into Earth's atmosphere. Copper and its alloys are primary candidates for handling these intense heat fluctuations, making it vital to understand exactly how the metal behaves when pushed to its melting point.

Now, researchers at the Department of Energy's SLAC National Accelerator Laboratory and collaborators have captured a detailed, step-by-step look at copper atoms as they underwent extreme heating. Published in Nature Communications, the results revealed a key parameter that allowed copper's crystal lattice to melt steadily rather than collapse instantaneously, as earlier simulations predicted. "These results greatly improve the simulations we use to predict which materials have the best shot at surviving the extreme conditions of future fusion reaction chambers," said Mianzhen Mo, a SLAC staff scientist who led the research. "They also demonstrate the incredible, atomic-scale resolution imaging we can achieve at SLAC's electron camera...."

Researchers use computer simulations, aided by AI and machine learning, to sift through innumerable combinations of elements and identify promising candidate materials for real-world testing.
"Whether the copper melts slowly or suddenly collapses, by the time the researchers look, the sample resembles nothing more than a metallic brown puddle," the article points out. But SLAC's powerful electron camera captures atomic and molecular movements down to the femtosecond — a millionth of a billionth of a second — and revealed that at around 1,424 degreesC (2,595 degreesF) there was still gradual melting as the temperature rose beyond the superheating limit, with real-world conditions showing the atoms shifted and retained some order.

"It's a straightforward solution," said Mianzhen Mo, a SLAC staff scientist who led the research. "But molecular dynamics simulations had been overlooking it for years. When you have complex simulations attempting to capture every aspect of reality, down to individual atoms, it takes real-world data to show you what's missing from the calculations."