Longtime Slashdot reader Tablizer shares a report from CNN: The hunt for planets that could harbor life may have just narrowed dramatically. Scientists had long hoped and theorized that the most common type of star in our universe -- called an M dwarf -- could host nearby planets with atmospheres, potentially rich with carbon and perfect for the creation of life. But in a new study of a world orbiting an M dwarf 66 light-years from Earth, researchers found no indication such a planet could hold onto an atmosphere at all. Without a carbon-rich atmosphere, it's unlikely a planet would be hospitable to living things. Carbon molecules are, after all, considered the building blocks of life. And the findings don't bode well for other types of planets orbiting M dwarfs, said study coauthor Michelle Hill, a planetary scientist and a doctoral candidate at the University of California, Riverside.

"The pressure from the star's radiation is immense, enough to blow a planet's atmosphere away," Hill said in a post on the university's website. M dwarf stars are known to be volatile, sputtering out solar flares and raining radiation on nearby celestial bodies. But for years, the hope had been that fairly large planets orbiting near M dwarfs could be in a Goldilocks environment, close enough to their small star to keep warm and large enough to cling onto its atmosphere. The nearby M dwarf, however, could be too intense to keep the atmosphere intact, according to the new study, which was published in The Astrophysical Journal Letters.

A similar phenomenon happens in our solar system: Earth's atmosphere also deteriorates because of outbursts from its nearby star, the sun. The difference is that Earth has enough volcanic activity and other gas-emitting activity to replace the atmospheric loss and make it barely detectable, according to the research. However, the M dwarf planet examined in the study, GJ 1252b, "could have 700 times more carbon than Earth has, and it still wouldn't have an atmosphere. It would build up initially, but then taper off and erode away," said study coauthor and UC Riverside astrophysicist Stephen Kane, in a news release.

Remember back in 2014 when every iTunes music library suddenly started showing U2's new album, Songs of Innocence?

In a new memoir (excerpted by the Guardian), U2's lead singer Bono says he's very sorry — and explains exactly how it happened: "Free music?" asked Tim Cook, the CEO of Apple, with a look of mild incredulity. "Are you talking about free music...? But the whole point of what we're trying to do at Apple is to not give away music free. The point is to make sure musicians get paid."

"No," I said, "I don't think we give it away free. I think you pay us for it, and then you give it away free, as a gift to people. Wouldn't that be wonderful...?"

Tim was not convinced. "There's something not right about giving your art away for free," he said. "And this is just to people who like U2?"

"Well," I replied, "I think we should give it away to everybody. I mean, it's their choice whether they want to listen to it." See what just happened? You might call it vaunting ambition. Or vaulting. Critics might accuse me of overreach. It is.....

At first I thought this was just an internet squall. We were Santa Claus and we'd knocked a few bricks out as we went down the chimney with our bag of songs. But quite quickly we realised we'd bumped into a serious discussion about the access of big tech to our lives. The part of me that will always be punk rock thought this was exactly what the Clash would do. Subversive. But subversive is hard to claim when you're working with a company that's about to be the biggest on Earth.

For all the custard pies it brought Apple — who swiftly provided a way to delete the album — Tim Cook never blinked. "You talked us into an experiment," he said. "We ran with it. It may not have worked, but we have to experiment, because the music business in its present form is not working for everyone."

If you need any more clues as to why Steve Jobs picked Tim Cook to take on the leadership of Apple, this is one. Probably instinctively conservative, he was ready to try something different to solve a problem. When it went wrong, he was ready to take responsibility.
"A study six months later found that only a quarter of iTunes users actually listened to at least one Song of Innocence," remembers Rolling Stone. Elsewhere in the excerpt, Bono talks about actually meeting with Steve Jobs in 2004, a conversation that resulted in the iconic "Vertigo" iPod ad. Then a new single, U2 offered the track to Apple to use for free, though the band attempted to get "some Apple stock" in exchange.

"'Sorry,' said Steve. 'That's a dealbreaker,'" Bono wrote. Instead, U2 settled for their own branded iPod.
Bono suggested it be black and red, according to his article in the Guardian — describing Steve Jobs' reaction as "nonplussed." Apple, he said, is about white hardware. "You wouldn't want a black one." He thought for a moment. "I can show you what it would look like, but you will not like it."

When, later, he showed the design to us, we loved it. So much that he'd ask Jony Ive, the company's design genius, to look at it again, and OK, maybe even experiment with a red component on the device, too. To reflect our Atomic Bomb album cover....

SpaceX continues to expand its satellite-internet constellation with its 186th overall launch. From a report: SpaceX's 100th launch from Space Launch Complex 40 at Florida's Cape Canaveral Space Force Station featured a set of 54 Starlink satellites, which launched to orbit on Thursday (Oct. 20) at 10:51 a.m. EDT (1451 GMT). "With the completion of today's launch, it marks SpaceX's 48th successful Falcon 9 mission of 2022," SpaceX Space Operations Engineer Siva Bharadvaj said during live commentary. This was the 10th flight overall for this particular Falcon 9. It's first stage touched down a little less than nine minutes later at sea on the SpaceX droneship A Shortfall of Gravitas. The satellites successfully deployed into low Earth orbit a little over 15 minutes after liftoff, according to SpaceX.

After 170 days in space, four astronauts splashed down in the Atlantic Ocean on Friday, bringing an end to a successful NASA-SpaceX mission to the International Space Station. From a report: Following two days of weather delays, SpaceX's Crew Dragon Freedom returned to Earth off the coast of Jacksonville, Florida, beneath clear blue skies and into mild seas. The spacecraft's descent through Earth's atmosphere appeared to be nominal, with two drogue parachutes deploying on schedule, followed by four clean main parachutes, allowing Dragon to splash down at about 25 km per hour. "SpaceX, from Freedom, thank you for an incredible ride up to orbit and an incredible ride home," Kjell Lindgren, the NASA commander of the spacecraft, said after landing.

Lindgren led a mission that included NASA astronauts Bob Hines and Jessica Watkins, as well as European Space Agency astronaut Samantha Cristoforetti. Upon landing, the spacecraft was met by two SpaceX "fast boats" that secured the toasty-looking vehicle before it was brought on board the Megan recovery ship, named after Megan McArthur, an astronaut aboard an earlier SpaceX flight. This mission, Crew-4, was the fourth operational mission flown by SpaceX for NASA. Earlier this month, the Crew-5 mission launched four astronauts to the space station, where they will remain for about six months. Including an initial demonstration mission in 2020, and two private spaceflights -- Inspiration4 and Axiom-1 -- Crew Dragon has now carried 30 people into orbit.

In a little more than two years, SpaceX has surpassed the total number of astronauts launched into orbit by China, whose human spaceflight program dates back to 2003; and in the time Crew Dragon has been operational, it has exceeded even the Russian Soyuz vehicle in terms of the total number of people flown into space during that period. Over the last two years Dragon had a few flaws, including an intermittently problematic toilet and a lagging parachute on one flight, but NASA officials have been extremely pleased with the vehicle's performance. It has safely returned the United States' capability of human spaceflight, which had been lost since the space shuttle's retirement. Had Dragon not been available, NASA would have been in the uncomfortable position of relying on Russia for crew transport amid the Ukraine war.

NPR reports that astronomers have spotted a black hole finally "burping" out energy from a star that it swallowed back in 2018: How unusual is this? "Super unusual," Yvette Cendes, an astronomer at the Center for Astrophysics, Harvard and Smithsonian and lead author of the paper, tells NPR. "We've never really seen this before to this degree."

Researchers made the discovery when they used a powerful radio telescope facility — the Very Large Array in New Mexico — to check in on some two dozen black holes where stars had been shredded after coming too close to them. That is, the material in the star was pulled apart, or "spaghettified." Such happenings are called tidal disruption events, or TDEs....

"There's a point when you get too close to a black hole that you can no longer escape the black hole — that's called the event horizon. But this material never crossed that boundary, according to our best estimates," Cendes explains. In other words, the star got close enough to the black hole to get shredded — but not to fall into that point of no return.
But that's not what's unusual about it. Mashable picks up the story, noting it's a black hole, at the center of a galaxy some 665 million light-years from Earth: It's the fact that this star apparently didn't sit well with the black hole for such a long time that surprised them. Researchers have been studying these events with radio telescopes for more than a decade, said Edo Berger, a Harvard astronomy professor and co-author. "There was radio silence for the first three years in this case," Berger said in a statement.

"And now it's dramatically lit up to become one of the most radio luminous ... ever observed."

The discovery suggests that delayed outflows of light from a black hole after swallowing a cosmic object could be happening more often than thought.

CNN reports: Elon Musk's latest internet jest has taken the form of a perfume with an unsavory scent: "Burnt Hair.

" The tech mogul, entrepreneur and sometimes internet troll announced the launch of the product on Twitter on Tuesday, calling it "the finest fragrance on Earth." The perfume is apparently being sold on The Boring Company's website for $100 and will ship in the first quarter of 2023....

The product is the successor to other Musk memes, like the $500 flamethrowers he sold in 2018 or the Tesla-branded satin shorts he debuted as investors "shorted" the company in 2020....

Musk appears to be enjoying the media attention on his newest lark. He switched his Twitter bio to "Perfume Salesman" and claimed to have sold 20,000 bottles....

"Please buy my perfume, so I can buy Twitter," he wrote on Wednesday.

The National Science Foundation announced Thursday that it will not rebuild a renowned radio telescope in Puerto Rico, which was one of the world's largest until it collapsed nearly two years ago. The Associated Press reports: Instead, the agency issued a solicitation for the creation of a $5 million education center at the site that would promote programs and partnerships related to science, technology, engineering and math. It also seeks the implementation of a research and workforce development program, with the center slated to open next year in the northern mountain town of Arecibo where the telescope was once located. The solicitation does not include operational support for current infrastructure at the site that is still in use, including a 12-meter radio telescope or the Lidar facility, which is used to study the upper atmosphere and ionosphere to analyze cloud cover and precipitation data.

The decision was mourned by scientists around the world who used the telescope at the Arecibo Observatory for years to search for asteroids, planets and extraterrestrial life. The 1,000-foot-wide (305-meter-wide) dish also was featured in the Jodie Foster film "Contact" and the James Bond movie "GoldenEye." The reflector dish and the 900-ton platform hanging 450 feet above it previously allowed scientists to track asteroids headed to Earth, conduct research that led to a Nobel Prize and determine if a planet is potentially habitable. The Arecibo Observatory collapsed in on itself in December 2020, after the telescope suffered two major cable malfunctions in the two months prior. The National Science Foundation released shocking footage of the moment when support cables snapped, causing the massive 900-ton structure suspended above Arecibo to fall onto the observatory's iconic 1,000-foot-wide dish.

SpaceX returned its fourth operational crew mission from the International Space Station on Friday, with the quartet of astronauts splashing down in the company's capsule off the coast of Florida. CNBC reports: The company's Crew Dragon spacecraft "Freedom" undocked from the ISS at around noon ET to begin the trip back to Earth, with splashdown happening around 5 p.m. ET. "Welcome home -- thanks for flying SpaceX," the company's mission control told the crew shortly after landing. "Thank you for an incredible ride to orbit, and an incredible ride home," Crew-4 commander Kjell Lindgren said in response.

Crew-4 includes NASA astronauts Lindgren, Bob Hines, and Jessica Watkins, as well as European Space Agency astronaut Samantha Cristoforetti. The mission launched in April for a six-month stay on the orbiting research laboratory. Elon Musk's company launched the Crew-5 mission last week, bringing four other astronauts to the ISS. SpaceX has now flown 30 people to orbit since its first crewed launch in May 2020, with six government missions and two private ones.

Global animal populations are declining, and we've got limited time to try to fix it. From a report: That's the upshot of a new report from the World Wildlife Fund and the Zoological Society of London, which analyzed years of data on thousands of wildlife populations across the world and found a downward trend in the Earth's biodiversity. According to the Living Planet Index, a metric that's been in existence for five decades, animal populations across the world shrunk by an average of 69% between 1970 and 2018. Not all animal populations dwindled, and some parts of the world saw more drastic changes than others. But experts say the steep loss of biodiversity is a stark and worrying sign of what's to come for the natural world. "The message is clear and the lights are flashing red," said WWF International Director General Marco Lambertini. According to the report's authors, the main cause of biodiversity loss is land-use changes driven by human activity, such as infrastructure development, energy production and deforestation. But the report suggests that climate change -- which is already unleashing wide-ranging effects on plant and animal species globally -- could become the leading cause of biodiversity loss if rising temperatures aren't limited to 1.5C.

The White House is coordinating a five-year research plan to study ways of modifying the amount of sunlight that reaches the earth to temper the effects of global warming, a process sometimes called solar geoengineering or sunlight reflection. From a report: The research plan will assess climate interventions, including spraying aerosols into the stratosphere to reflect sunlight back into space, and should include goals for research, what's necessary to analyze the atmosphere, and what impact these kinds of climate interventions may have on Earth, according to the White House's Office of Science and Technology Policy. Congress directed the research plan be produced in its spending plan for 2022, which President Joe Biden signed in March.

Some of the techniques, such as spraying sulfur dioxide into the atmosphere, are known to have harmful effects on the environment and human health. But scientists and climate leaders who are concerned that humanity will overshoot its emissions targets say research is important to figure out how best to balance these risks against a possibly catastrophic rise in the Earth's temperature. Getting ready to research a topic is a very preliminary step, but it's notable the White House is formally engaging with what has largely been seen as the stuff of dystopian fantasy. In Kim Stanley Robinson's science fiction novel, "The Ministry for the Future," a heat wave in India kills 20 million people and out of desperation, India decides to implement its own strategy of limiting the sunlight that gets to Earth. Chris Sacca, the founder of climate tech investment fund Lowercarbon Capital, said it's prudent for the White House to be spearheading the research effort.

Entrepreneur Dennis Tito and his wife, Akiko Tito, announced Wednesday that they purchased two tickets on the second of SpaceX's planned circumlunar flights later this decade. Dennis Tito made history when he became the first person to pay for his own ride into space more than two decades ago. He flew aboard a Soyuz vehicle and spent a week on the International Space Station. As for his wife, Akiko Tito, she becomes the first woman confirmed to fly on Starship, notes Ars Technica. From the report: The flight will last about a week, outbound to the Moon, passing within about 40 km of the surface and flying back. Ten other seats on Starship remain unsold and are available. Tito said he was not at liberty to disclose the price he paid. This brings the manifest of private human spaceflights on Starship, and its Super Heavy rocket, to three. There is billionaire Jared Isaacman's Polaris III mission, likely to low Earth orbit, which will be followed by Japanese billionaire Yusaku Maezawa's "dearMoon" flight, the first human Starship flight around the Moon. Then comes Tito and the second circumlunar mission.

SpaceX has also contracted with NASA to fly the first human landing on the Moon as part of the Artemis program, but for now, NASA astronauts will launch on a separate rocket and rendezvous with Starship in lunar orbit to go down to the lunar surface and back to orbit. So far, NASA hasn't announced plans to launch astronauts from Earth on Starship or land them back here. The timeline for all of these missions hinges on the development of the Starship vehicle, which may make a debut orbital test flight in the coming months from South Texas. After that, the large, fully reusable launch system will fly dozens of uncrewed missions, mostly carrying Starlink payloads, before humans climb on board. This is because Starship will make a propulsive landing back on Earth -- something no crew vehicle has ever done -- and has no backup should there be some sort of landing failure.

An anonymous reader quotes a report from the Guardian: A spacecraft that plowed into a small, harmless asteroid millions of miles from Earth succeeded in shifting the orbit of the space rock, Nasa said on Tuesday, announcing the results of its first such test. The US space agency strategically launched the Double Asteroid Redirection Test ("Dart") spacecraft into the path of the asteroid, thereby throwing it off course. Nasa hopes to be able to deflect any asteroid or comet that comes to pose a real threat to Earth.

Dart altered the orbit of the Dimorphos asteroid by 32 minutes. Glaze said the minimum requirement for changing the orbital period was "really only 73 seconds." Last year, in a test that cost $325 million, another Dart spacecraft, roughly the size of a vending machine, was destroyed when it slammed into an asteroid 7m miles away, at 14,000mph.In a tweet, the vice-president, Kamala Harris, said: "Congratulations to the team at Nasa for successfully altering the orbit of an asteroid. The Dart mission marks the first time humans have changed the motion of a celestial body in space, demonstrating technology that could one day be used to protect Earth."

The scientist and educator Bill Nye said: "We're celebrating ... because a mission like this could save the world."

The Nasa administrator, the former astronaut and Democratic Florida senator Bill Nelson, said: "We showed the world that Nasa is serious as a defender of this planet."

Lori Glaze, director of Nasa's planetary division, said: "Let's all just take a moment to soak this in. We're all here this afternoon because for the first time ever, humanity has changed the orbit of a planetary body."

Lynk, a competitor to the much larger SpaceX, plans to offer an experimental 5G cellular base station aboard a mission in December, working alongside an undisclosed cellular partner. Space.com reports: The experimental payload will launch on Lynk's second commercial satellite, company officials said. "This test will demonstrate the ability to send a 5G signal from space to standard mobile devices on Earth," Lynk officials wrote in late September. The test is a shot across the bow to SpaceX, which has already signed a deal with T-Mobile for cellular service but, unlike Lynk, does not yet have Federal Communications Commission (FCC) approval. Lynk received the prized FCC thumbs-up just a few weeks ago.

Lynk and SpaceX are jostling for market access to people living in rural areas who lack access to standard internet service. Lynk already tested a satellite-to-phone service link last year, according to Via Satellite, and is ramping up service fast in a bid to keep ahead of the competition. "We are actively testing satellite-direct-to-phone-services in 12 countries on five continents," Dan Dooley, chief commercial officer of Lynk, said in the same company statement. The company's patent allows the orbiting cell tower to link up with standard 5G devices in 55 countries, Lynk says.

Andy Lapsa and Tom Feldman, former Blue Origin engineers and the founders of Stoke Space, are working to develop the first fully recyclable space rocket -- one that features a reusable first and second stage. Here's an excerpt from Ars Technica's exclusive report, written by Eric Berger: In the 20 months since its initial seed round of funding, Stoke has built a second-stage engine, a prototype for the second stage, turbopumps, and manufacturing facilities. It also increased its headcount to 72 people and finalized the overall design for the rocket, which has a lift capacity of 1.65 metric tons to low-Earth orbit, in fully reusable mode. Last month, the company started to test-fire its upper-stage engines at a facility in Moses Lake, Washington. The images and video show an intriguing-looking ring with 15 discrete thrusters firing for several seconds. The circular structure is 13 feet in diameter, and this novel-looking design is Stoke's answer to one of the biggest challenges of getting a second stage back from orbit.

Most commonly, a traditional rocket has an upper stage with a single engine. This second-stage rocket engine has a larger nozzle -- often bell-shaped -- to optimize the flow of engine exhaust in a vacuum. Because all parts of a rocket are designed to be as light as possible, such extended nozzles are often fairly fragile because they're only exposed above Earth's atmosphere. So one problem with getting an upper stage back from Earth, especially if you want to use the engine to control and slow its descent, is protecting this large nozzle. One way to do that is to bury the engine nozzle in a large heat shield, but that would require more structure and mass, and it may not be dynamically stable. Stoke's answer was using a ring of 30 smaller thrusters. (The tests last month only employed 15 of the 30 thrusters). In a vacuum, the plumes from these nozzles are designed to merge and act as one. And during reentry, with a smaller number of smaller thrusters firing, it's easier to protect the nozzles. "What you're seeing in the photos of the test is a high-performance upper-stage engine that can operate within atmosphere at deep throttle to support vertical landing but then also perform at a higher ISP than some variants of the RL 10 engine in space," Lapsa said.

Another significant second-stage problem is protecting the whole vehicle from the super-heated atmosphere during reentry. NASA's Space Shuttle accomplished this with brittle thermal tiles, but these required 30,000 employee hours to inspect, test, and refurbish between flights. SpaceX is using a different type of ceramic tile, designed to be more reusable, for Starship. Given Stoke's background in rocket engines, Lapsa said it made the most sense to try a regeneratively cooled heat shield. The vehicle's ductile metallic outer layer will be lined with small cavities to flow propellant through the material to keep it cool during reentry. The second stage, therefore, will return to Earth somewhat like a space capsule -- base first, with the regeneratively cooled heat shield.

Stoke Space has a very long road ahead of it to reach space. Engine tests are an important step, but they're only the first step of many. Next up for the company is "hop" tests with a full-scale version of the second stage at the Moses Lake facility in central Washington. This prototype won't have a fairing as it would during launch, but it will still stand 19 feet tall. Initially, the tests will be low-altitude, probably measured in hundreds of feet. If there's an engineering need to go higher, the company will consider that, Lapsa said. But for now, the goal is to prove the capability to control the rocket during ascent and descent and make a soft landing. This is a shockingly difficult guidance, navigation, and control problem, especially with a novel system of distributed thrusters. "This is kind of a final proof point of this architecture," Lapsa said. "It is new. It's different. It's weird. It's original. There were a lot of questions that we had about how this thing is going to work. But we've already mitigated a lot of risk." If Stoke can manage to land the upper stage, it can move ahead with the first stage and start to turn the yet-unnamed rocket into an orbital vehicle. It sounds easy, but it's not...

Look at the full moon! Tonight it may appear larger and more orange than usual, reports Space.com, "taking on a fitting appearance for the fall season and for the build-up to Halloween." This is the result of something called the 'moon illusion' and the fact it is being viewed close to the horizon. The orange color comes about because as we look at the full moon close to the horizon, the light that it reflects towards us is passing through more of the Earth's atmosphere than when it is close to overhead. Molecules in Earth's atmosphere are really good at scattering photons of blue light which have shorter wavelengths than red light. This means that blue photons bounce around the sky before hitting our eyeâS — âS and that's why the sky is blue. Longer wavelength red photons slip right through these molecules and straight to our eye for the most part.

When red photons reflected by the moon have to pass through the thickest part of the atmosphere at the horizon, the chance of them being bounced around is increased. That's why the moon appears redder when we look at it close to the horizon....

"The Rust programming language is getting so popular that the team behind it is creating a team that's dedicated to defining the default Rust coding style," reports ZDNet: Each language has style guides and, if they're popular enough, may have multiple style guides from major users, like Google, which has its guide for C++ — the language Chrome is written in. Python's Guido van Rossum's posted his styling conventions here.

Rust, which reached version 1.0 in 2015, has a style guide in the "rustfmt" or 'Rust formatting tool' published on GitHub. The tool automatically formats Rust code to let developers focus on output and aims to reduce the steep learning curve confronting new Rust developers. The guide instructs developers to "Use spaces, not tabs" and says "each level of indentation must be 4 spaces", for example....

But the team responsible for writing the style guide between 2016 and 2018 has "by design" come to end, so now it's now been decided to create the Rust style team, consisting of Josh Triplett, Caleb Cartwright, Michal Goulet, and Jane Lusby. The crew will first tackle a "backlog of new language constructs that lack formatting guidance" and move on to "defining and implementing the mechanisms to evolve the default Rust style, and then begin introducing style improvements."

The work includes minor language changes, big structural changes, and backwards compatibility and the style team wants to craft the tool to make it current for easier coding in Rust, and help adoption.
New constructs "by default, get ignored and not formatted by rustfmt," according to a blog post by the Rust style team, "and subsequently need formatting added. Some of this work has fallen to the rustfmt team in recent years, but the rustfmt team would prefer to implement style determinations made by another team rather than making such determinations itself."

The post also notes that the backwards compatibility maintained by rustfmt "also prevents evolving the Rust style to take community desires into account and improve formatting over time." rustfmt provides various configuration options to change its default formatting, and many of those options represent changes that many people in the community would like enabled by default... but [rustfmt] cannot make this the default without causing continuous integration failures in existing projects. We need a way to evolve the default Rust style compatibly, similar in spirit to the mechanisms we use for Rust editions: allowing existing style to continue working, and allowing people to opt into new style.

To solve both of these problems, RFC 3309 has revived the Rust style team, with three goals:

- Making determinations about styling for new Rust constructs
- Evolving the existing Rust style
- Defining mechanisms to evolve the Rust style while taking backwards compatibility into account

We don't plan to make any earth-shattering style changes; the look and feel of Rust will remain largely the same. Evolutions to the default Rust style will largely consist of established rustfmt options people already widely enable, or would enable if they were stable. We expect that the initial work of the style team will focus on clearing a backlog of new language constructs that lack formatting guidance. Afterwards, we will look towards defining and implementing the mechanisms to evolve the default Rust style, and then begin introducing style improvements.

In an exclusive excerpt from William Shatner's new book, "Boldly Go: Reflections on a Life of Awe and Wonder," the Star Trek actor reflects on his voyage into space on Jeff Bezos' Blue Origin space shuttle on Oct. 13, 2021. Then 90 years old, Shatner became the oldest living person to travel into space, but as the actor and author details below, he was surprised by his own reaction to the experience. An anonymous reader shares an excerpt from the report: I looked down and I could see the hole that our spaceship had punched in the thin, blue-tinged layer of oxygen around Earth. It was as if there was a wake trailing behind where we had just been, and just as soon as I'd noticed it, it disappeared. I continued my self-guided tour and turned my head to face the other direction, to stare into space. I love the mystery of the universe. I love all the questions that have come to us over thousands of years of exploration and hypotheses. Stars exploding years ago, their light traveling to us years later; black holes absorbing energy; satellites showing us entire galaxies in areas thought to be devoid of matter entirely all of that has thrilled me for years but when I looked in the opposite direction, into space, there was no mystery, no majestic awe to behold... all I saw was death. I saw a cold, dark, black emptiness. It was unlike any blackness you can see or feel on Earth. It was deep, enveloping, all-encompassing. I turned back toward the light of home. I could see the curvature of Earth, the beige of the desert, the white of the clouds and the blue of the sky. It was life. Nurturing, sustaining, life. Mother Earth. Gaia. And I was leaving her. Everything I had thought was wrong. Everything I had expected to see was wrong.

I had thought that going into space would be the ultimate catharsis of that connection I had been looking for between all living things -- that being up there would be the next beautiful step to understanding the harmony of the universe. In the film "Contact," when Jodie Foster's character goes to space and looks out into the heavens, she lets out an astonished whisper, "They should've sent a poet." I had a different experience, because I discovered that the beauty isn't out there, it's down here, with all of us. Leaving that behind made my connection to our tiny planet even more profound. It was among the strongest feelings of grief I have ever encountered. The contrast between the vicious coldness of space and the warm nurturing of Earth below filled me with overwhelming sadness. Every day, we are confronted with the knowledge of further destruction of Earth at our hands: the extinction of animal species, of flora and fauna... things that took five billion years to evolve, and suddenly we will never see them again because of the interference of mankind. It filled me with dread. My trip to space was supposed to be a celebration; instead, it felt like a funeral.

I learned later that I was not alone in this feeling. It is called the "Overview Effect" and is not uncommon among astronauts, including Yuri Gagarin, Michael Collins, Sally Ride, and many others. Essentially, when someone travels to space and views Earth from orbit, a sense of the planet's fragility takes hold in an ineffable, instinctive manner. Author Frank White first coined the term in 1987: "There are no borders or boundaries on our planet except those that we create in our minds or through human behaviors. All the ideas and concepts that divide us when we are on the surface begin to fade from orbit and the moon. The result is a shift in worldview, and in identity." It can change the way we look at the planet but also other things like countries, ethnicities, religions; it can prompt an instant reevaluation of our shared harmony and a shift in focus to all the wonderful things we have in common instead of what makes us different. It reinforced tenfold my own view on the power of our beautiful, mysterious collective human entanglement, and eventually, it returned a feeling of hope to my heart. In this insignificance we share, we have one gift that other species perhaps do not: we are aware -- not only of our insignificance, but the grandeur around us that makes us insignificant. That allows us perhaps a chance to rededicate ourselves to our planet, to each other, to life and love all around us. If we seize that chance.

A new study suggests that a billboard-like constellation of about 50 satellites, costing $65 million all in, could shine ads to every corner of the Earth for months -- and potentially make money while doing so. TechCrunch reports: The study, from Russian researchers at the Skolkovo Institute of Science and Technology (Skoltech) and Moscow Institute of Physics and Technology (MIPT), presents a fairly compelling case that is bolstered by the recent controversy around SpaceX's highly visible Starlink satellites. The paper's proposal involves sending up a constellation of about 50 satellites at a 12U CubeSat volume -- think about the size of a full paper grocery bag. The satellites would enter a sun-synchronous orbit, meaning they'll always be in direct sunlight as they pass around the Earth. Once in orbit, they would deploy large, parabolic reflectors that would bounce sunlight down toward the Earth. These could be tilted to best present the sunlight to a target area they are passing over, and from the ground would appear to be a group of stars moving in synchrony for a period of perhaps three to five minutes. (To be clear, the image at top is just for illustration -- it would be much dimmer in reality.)

The 50 satellites could rearrange themselves in patterns, from letters to simple graphics -- not fast, but fast enough that the shape could evolve over their visible time, or change advertisers between target cities. They would deorbit after 1-3 months, depending on several factors. I've asked the researchers for clarification on the lifetime, display length and a few other details and will update this post if I hear back. The physical possibility of doing this doesn't seem outlandish at all considering how visible existing satellites can be in these orbits, and the precision with which they can be arranged already. So with that established, a good deal of the paper is dedicated to an economic analysis. After all, we probably could have launched a Nike logo to space in the '90s (and there were attempts) if the world came together on it... but why would they? The thing has to make financial sense.

The cost of the mission is estimated at $65 million, most of which goes to manufacturing the 50 satellites ($48.7 million), then to testing, support and engineering ($11.5 million), and of course launch ($4.8 million). That seems reasonable enough in theory. But it gets a little fuzzy in the income estimates. A complicated equation for determining which cities, in which regions and at what times of the year would make more money suggests that winter provides the greatest ROI. You might think: but people stay inside during the winter. Yes, but not in the tropics and much of south and southeast Asia, where winter brings longer nights but nothing like the inclement weather of northern latitudes. And it happens some of the most densely populated cities in the world are there. Their most optimistic estimate puts net income at around $111 million, over three months and 24 displays -- that works out to around $4.6 million per ad. Super Bowl ads cost more than that, and only last 30 seconds -- though of course they're in 4K and full color with sound. But the money and appetite for stunt advertising is definitely there.

The NOEMA radio telescope, located on the Plateau de Bure in the French Alps, is now equipped with twelve antennas, making it the most powerful radio telescope of its kind in the northern hemisphere. Phys.Org reports: Eight years after the inauguration of the first NOEMA antenna in 2014, the large-scale European project is now complete. Thanks to its twelve 15-meter antennas, which can be moved back and forth on a specially developed rail system up to a distance of 1.7 kilometers long, NOEMA is a unique instrument for astronomical research. The telescope is equipped with highly sensitive receiving systems that operate close at the quantum limit. During observations, the observatory's twelve antennas act as a single telescope -- a technique called interferometry. After all the antennas have been pointed towards one and the same region of space, the signals they receive are combined with the help of a supercomputer. Their detailed resolution then corresponds to that of a huge telescope whose diameter is equal to the distance between the outermost antennas.

The respective arrangement of the antennas can extend over distances from a few hundred meters to 1.7 kilometers. The network thus functions like a camera with a variable lens. The further apart the antennas are, the more powerful is the zoom: the maximum spatial resolution of NOEMA is so high that it would be able to detect a mobile phone at a distance of over 500 kilometers. NOEMA is one of the few radio observatories worldwide that can simultaneously detect and measure a large number of signatures -- i.e., "fingerprints" of molecules and atoms. Thanks to these so-called multi-line observations, combined with high sensitivity, NOEMA is a unique instrument for investigating the complexity of cold matter in interstellar space as well as the building blocks of the university. With NOEMA, over 5,000 researchers from all over the world study the composition and dynamics of galaxies as well as the birth and death of stars, comets in our solar system or the environment of black holes. The observatory captures light from cosmic objects that has traveled to Earth for more than 13 billion years. NOEMA has "observed the most distant known galaxy, which formed shortly after the Big Bang," notes the report. It also "measured the temperature of the cosmic background radiation at a very early stage of the universe, a scientific first that should make it possible to trace the effects of dark energy driving the universe apart."

Ars Technica's Eric Berger writes: Four days before Thanksgiving in 2002, space shuttle Endeavour lifted off from Kennedy Space Center in Florida. Among the seven crew members to the International Space Station was one Russian cosmonaut, Nikolai M. Budarin, making his third spaceflight. By then, as part of warming relations between Russia and the United States, cosmonauts had been flying on board the space shuttle for nearly a decade. The exchange program would have continued, but tragedy struck on the shuttle's next mission, which launched in January 2003. Space Shuttle Columbia was lost upon reentry into Earth's atmosphere, killing all seven astronauts on board.

Following this disaster, no more Russians would fly on the space shuttle after it returned to service. Instead, NASA focused on flying the minimum number of missions needed to complete the construction of the International Space Station. After the shuttle's retirement in 2011, NASA would come to rely on Russia's Soyuz vehicle as its only ride to space. NASA regained the capacity to launch its own astronauts into space in 2020, after working with SpaceX to complete the development of the Crew Dragon vehicle. Following a successful demonstration flight in May 2020 with two astronauts on board, Crew Dragon safely launched six additional times, carrying an additional two dozen people into space.

On Wednesday, Crew Dragon carried astronauts into space for an eighth time, with the fifth operational mission for NASA. This Crew-5 flight was commanded by Nicole Mann, a NASA astronaut making her first flight into space. "Whooo, that was a smooth ride uphill!" she exclaimed upon reaching orbit. Among the four Dragon riders was a cosmonaut, Anna Kikina, also making her debut flight into space. She is just the sixth Russian or Soviet female cosmonaut in the history of the program since Valentina Tereshkova flew into orbit on June 16, 1963. Kikina is also the first Russian to launch into space from the United States since Budarin, two decades ago. In addition to Mann and Kikina, Crew-5 is rounded out by NASA astronaut Josh Cassada and Japanese astronaut Koichi Wakata. While the other three are rookies, this is Wakata's fifth spaceflight. During their stay aboard the International Space Station, the astronauts will conduct more than 200 science experiments and technology demonstrations, including studies on printing human organs in space.