Chemical pollution is "a threat to the thriving of humans and nature of a similar order as climate change" but decades behind global heating in terms of public awareness and action, a report has warned. The Guardian: The industrial economy has created more than 100 million "novel entities," or chemicals not found in nature, with somewhere between 40,000 and 350,000 in commercial use and production, the report says. But the environmental and human health effects of this widespread contamination of the biosphere are not widely appreciated, in spite of a growing body of evidence linking chemical toxicity with effects ranging from ADHD to infertility to cancer.

"I suppose that's the biggest surprise for some people," Harry Macpherson, senior climate associate at Deep Science Ventures (DSV), which carried out the research, told the Guardian. "Maybe people think that when you walk down the street breathing the air; you drink your water, you eat your food; you use your personal care products, your shampoo, cleaning products for your house, the furniture in your house; a lot of people assume that there's really great knowledge and huge due diligence on the chemical safety of these things. But it really isn't the case."

Parts of the Great Barrier Reef have suffered the largest annual decline in coral cover since records began nearly 40 years ago, according to a new report. BBC: Northern and southern branches of the sprawling Australian reef both suffered their most widespread coral bleaching, the Australian Institute of Marine Science (AIMS) found.

Reefs have been battered in recent months by tropical cyclones and outbreaks of crown-of-thorns starfish that feast on coral, but heat stress driven by climate change is the predominant reason, AIMS said. AIMS warns the habitat may reach a tipping point where coral cannot recover fast enough between catastrophic events and faces a "volatile" future. AIMS surveyed the health of 124 coral reefs between August 2024 and May 2025. It has been performing surveys since 1986.

Often dubbed the world's largest living structure, the Great Barrier Reef is a 2,300km (1,429-mile) expanse of tropical corals that houses a stunning array of biodiversity. Repeated bleaching events are turning vast swaths of once-vibrant coral white. Australia's second largest reef, Ningaloo -- on Australia's western coast -- has also experienced repeated bleaching, and this year both major reefs simultaneously turned white for the first time ever. Coral is vital to the planet. Nicknamed the sea's architect, it builds vast structures that house an estimated 25% of all marine species.

A new War of the Worlds adaptation starring Ice Cube has achieved a 0% critical rating on Rotten Tomatoes after arriving on Prime Video in late July. The science fiction film, produced by Universal Pictures during the 2020 pandemic using actors filming separately through video calls, features alien tripods emerging from meteors to attack Earth.

The movie sat unreleased for approximately five years before streaming debut. Critics cite poor visual effects that "wouldn't pass muster on a whimsical Snickers ad" and performances where actors appear to be "performing in a Zoom-style vacuum." The film was shot using screenlife format with most action unfolding on computer screens.

The Trump administration has reportedly directed NASA to draw up plans to shut down its Orbiting Carbon Observatory satellite missions, which provide vital climate and agricultural data for scientists, oil and gas companies and farmers who need detailed information about carbon dioxide and crop health. As NPR reports, the satellites are "the only two federal satellite missions that were designed and built specifically to monitor planet-warming greenhouse gases." From the report: It is unclear why the Trump administration seeks to end the missions. The equipment in space is state of the art and is expected to function for many more years, according to scientists who worked on the missions. An official review by NASA in 2023 found that "the data are of exceptionally high quality" and recommended continuing the mission for at least three years.

Both missions, known as the Orbiting Carbon Observatories, measure carbon dioxide and plant growth around the globe. They use identical measurement devices, but one device is attached to a stand-alone satellite while the other is attached to the International Space Station. The standalone satellite would burn up in the atmosphere if NASA pursued plans to terminate the mission.

NASA employees who work on the two missions are making what the agency calls Phase F plans for both carbon-monitoring missions, according to David Crisp, a longtime NASA scientist who designed the instruments and managed the missions until he retired in 2022. Phase F plans lay out options for terminating NASA missions. The OCO missions would lose funding under the Trump Administration's budget proposal for Fiscal Year 2026, which begins Oct. 1 but has yet to pass. "Presidential budget proposals are wish lists that often bear little resemblance to final congressional budgets," notes NPR. "The Orbiting Carbon Observatory missions have already received funding from Congress through the end of the 2025 fiscal year, which ends Sept. 30."

"Draft budgets that Congress is currently considering for next year keep NASA funding basically flat. But it's not clear whether these specific missions will receive funding again, or if Congress will pass a budget before current funding expires on Sept. 30."

Plastics are a "grave, growing and under-recognised danger" to human and planetary health, a new expert review has warned. From a report: The world is in a "plastics crisis," it concluded, which is causing disease and death from infancy to old age and is responsible for at least $1.5 trillion a year in health-related damages. The driver of the crisis is a huge acceleration of plastic production, which has increased by more than 200 times since 1950 and is set to almost triple again to more than a billion tonnes a year by 2060.

[...] Plastic pollution has also soared, with 8 billion tonnes now polluting the entire planet, the review said, from the top of Mount Everest to the deepest ocean trench. Less than 10% of plastic is recycled.

"Jeff Bezos' Blue Origin launched a crypto billionaire and five other people to the final frontier on Sunday," reports Space.com: The mission — known as NS-34, because it was the 34th overall flight of Blue Origin's New Shepard vehicle — lifted off from the company's West Texas spaceport at 8:43 a.m. EDT (1243 GMT; 7:43 a.m. local time in West Texas).

The highest-profile NS-34 passenger was Justin Sun, a 34-year-old billionaire who founded the blockchain platform Tron. In June 2021, Sun won an auction for a seat aboard the first-ever crewed flight of New Shepard, plunking down $28 million. [Sun was unable to take that flight due to a scheduling conflict, but Blue Origin says "the proceeds from the $28 million bid benefitted 19 space-focused charities"...] The people flying with Sun on Sunday were Arvinder (Arvi) Singh Bahal, an Indian-born American real estate investor and adventurer; Turkish businessman and photographer Gökhan Erdem; Deborah Martorell, a journalist and meteorologist from Puerto Rico; Englishman Lionel Pitchford, who has run an orphanage in Nepal for three decades; and American entrepreneur James (J.D.) Russell... All six passengers were spaceflight rookies except Russell, who flew on Blue Origin's NS-28 mission in November 2024.

NS-34 was the 14th human spaceflight to date for New Shepard, which consists of a rocket topped by a crew capsule. Both of these elements are reusable; the rocket comes back to Earth for a vertical, powered touchdown like those performed by SpaceX's Falcon 9 rockets, and the capsule lands softly under parachutes. Each New Shepard flight lasts 10 to 12 minutes from liftoff to capsule touchdown.
"New Shepard has now flown 75 people into space," Blue Origin said in a statement, "including five people who have flown twice."

There's now an "influx" of startups fightging wildfires, reports the Washington Post.

"More than 100 new wildfire-related technologies have launched in the U.S. and around the world since 2023, according to Lori Moore-Merrell, who served as U.S. fire administrator during the Biden administration... Unmanned lookout poles that use AI to sense smoke have been erected in the West. Swarms of military-grade drones are increasingly used for wildfire detection and management. AI technology also tracks lightning strikes, which can ignite wildfires..." As America contends with what is already a punishing year of wildfires across massive swaths of the country, new, extremely precise satellite images beamed from space from the initiative FireSat. In March, a satellite outfitted with infrared sensors was launched more than 370 miles into space with the sole task of detecting and monitoring fires. With the ability to loop millions of miles around the planet each day, it found active fires and burn scars using bands of infrared light, demonstrating technology that the project's leaders and its early adopters said could be integral to filling technological gaps in the way they fight burns.

The satellite initiative was launched by a nonprofit coalition called Earth Fire Alliance (EFA). Its partners include Muon Space, which is developing the satellites; Google, which is using AI to help filter through the images; the Gordon and Betty Moore Foundation; and the Environmental Defense Fund. The goal is to have 50 satellites in orbit by 2030 to capture the entire world. At full capacity, the constellation is aiming to sweep the entire Earth every 20 minutes to detect small fires. By spring or summer of next year, it plans to launch three more satellites into space that will coordinate with agencies in states including California and Colorado to help them detect and fight fire.

An anonymous reader quotes a report from The Guardian: A 515-mile (829km) lightning flash has set a new record as the longest ever identified. The World Meteorological Organization (WMO) confirmed the new world record for the flash registered on October 22, 2017, over the Great Plains in the US. It stretched from east Texas to near Kansas City, Missouri, roughly the distance between Paris and Venice. The previous record of 768km was also recorded in the Great Plains, a hotspot for severe thunderstorms, on April 29, 2020.

Since 2016, scientific advances in space-based mapping have allowed for lightning flashes to be measured over a broader space, allowing these long flashes to be recorded. This event was one of the first flashes to be documented using the National Oceanic and Atmospheric Administration's latest model of orbital satellite, known as a geostationary operational environmental satellite. [...] The advances in technology have also allowed for the recording of the greatest duration for a single lightning flash. The record is a flash that lasted 17.1 seconds during a thunderstorm over Uruguay and northern Argentina on June 18, 2020. The findings have been published in the journal Bulletin of the American Meteorological Society.

Google today announced AlphaEarth Foundations, a new AI model that processes terabytes of daily satellite data to track environmental changes across the planet. The system, part of Google's broader Earth AI initiative, uses machine learning to compress satellite imagery into color-coded maps showing material properties, vegetation types, groundwater sources, and human constructions down to 10-meter resolution.

The model uses a technique called "embeddings" that reduces storage requirements by 16 times compared to other AI tools Google tested, while delivering 23.9% higher accuracy than similar systems. AlphaEarth has already mapped complex Antarctic terrain and identified variations in Canadian agricultural land use invisible to direct observation.

The technology currently powers flood and wildfire alerts in Google Search and Maps. Research organizations including Brazil's MayBiomas and the Global Ecosystems Atlas are using the system to analyze rainforests, deserts, and wetlands. The model integrates with Google Earth Engine, providing agencies like NASA and the Forest Service access to over one trillion annual data points for environmental monitoring and mapping applications.

India launched the $1.5 billion NISAR radar imaging satellite on Wednesday from the Satish Dhawan Space Centre, marking the first joint mission between NASA and the Indian Space Research Organisation. The satellite uses dual radar frequencies -- NASA's L-band and ISRO's S-band -- to detect Earth surface changes as small as one centimeter from its 747-kilometer orbit.

NISAR will map the entire planet every 12 days using a 240-kilometer-wide radar swath, providing data for climate monitoring and disaster response that will be freely available to users worldwide.

Measuring earth's position (or "geodesy") requires using telescopes that track radiation from distant black holes. Their signals "pass cleanly through the atmosphere and we can receive them during day and night and in all weather conditions," writes a senior scientist at the University of Tasmania.

But there's a problem... Radio waves are also used for communication on Earth — including things such as wifi and mobile phones... [A] few narrow lanes are reserved for radio astronomy. However, in previous decades the radio highway had relatively little traffic. Scientists commonly strayed from the radio astronomy lanes to receive the black hole signals. To reach the very high precision needed for modern technology, geodesy today relies on more than just the lanes exclusively reserved for astronomy.

In recent years, human-made electromagnetic pollution has vastly increased. When wifi and mobile phone services emerged, scientists reacted by moving to higher frequencies. However, they are running out of lanes. Six generations of mobile phone services (each occupying a new lane) are crowding the spectrum... Today, the multitude of signals are often too strong for geodetic observatories to see through them to the very weak signals emitted by black holes. This puts many satellite services at risk.

To keep working into the future — to maintain the services on which we all depend — geodesy needs some more lanes on the radio highway. When the spectrum is divided up via international treaties at world radio conferences, geodesists need a seat at the table. Other potential fixes might include radio quiet zones around our essential radio telescopes. Work is also underway with satellite providers to avoid pointing radio emissions directly at radio telescopes. Any solution has to be global. For our geodetic measurements, we link radio telescopes together from all over the world, allowing us to mimic a telescope the size of Earth. The radio spectrum is primarily regulated by each nation individually, making this a huge challenge.

But perhaps the first step is increasing awareness. If we want satellite navigation to work, our supermarkets to be stocked and our online money transfers arriving safely, we need to make sure we have a clear view of those black holes in distant galaxies — and that means clearing up the radio highway.

California researchers planned a multimillion-dollar test of salt water-spraying equipment that could one day be used to dim the sun's rays — over a 3,900-square mile are off the west coasts of North America, Chile or south-central Africa. E&E News calls it part of a "secretive" initiative backed by "wealthy philanthropists with ties to Wall Street and Silicon Valley" — and a piece of the "vast scope of research aimed at finding ways to counter the Earth's warming, work that has often occurred outside public view." "At such scales, meaningful changes in clouds will be readily detectable from space," said a 2023 research plan from the [University of Washington's] Marine Cloud Brightening Program. The massive experiment would have been contingent upon the successful completion of the thwarted pilot test on the carrier deck in Alameda, according to the plan.... Before the setback in Alameda, the team had received some federal funding and hoped to gain access to government ships and planes, the documents show.

The university and its partners — a solar geoengineering research advocacy group called SilverLining and the scientific nonprofit SRI International — didn't respond to detailed questions about the status of the larger cloud experiment. But SilverLining's executive director, Kelly Wanser, said in an email that the Marine Cloud Brightening Program aimed to "fill gaps in the information" needed to determine if the technologies are safe and effective.âIn the initial experiment, the researchers appeared to have disregarded past lessons about building community support for studies related to altering the climate, and instead kept their plans from the public and lawmakers until the testing was underway, some solar geoengineering experts told E&E News. The experts also expressed surprise at the size of the planned second experiment....

The program does not "recommend, support or develop plans for the use of marine cloud brightening to alter weather or climate," Sarah Doherty, an atmospheric and climate science professor at the university who leads the program, said in a statement to E&E News. She emphasized that the program remains focused on researching the technology, not deploying it. There are no "plans for conducting large-scale studies that would alter weather or climate," she added.
"More than 575 scientists have called for a ban on geoengineering development," according to the article, "because it 'cannot be governed globally in a fair, inclusive, and effective manner.'" But "Some scientists believe that the perils of climate change are too dire to not pursue the technology, which they say can be safely tested in well-designed experiments... " "If we really were serious about the idea that to do any controversial topic needs some kind of large-scale consensus before we can research the topic, I think that means we don't research topics," David Keith, a geophysical sciences professor at the University of Chicago, said at a think tank discussion last month... "The studies that the program is pursuing are scientifically sound and would be unlikely to alter weather patterns — even for the Puerto Rico-sized test, said Daniele Visioni, a professor of atmospheric sciences at Cornell University. Nearly 30 percent of the planet is already covered by clouds, he noted.
Thanks to Slashdot reader fjo3 for sharing the news.

Liquefied CO2 will be transported by ship to "the world's first carbon shipping port," reports the Washington Post — an island in the North Sea where it will be "buried in a layer of spongy rock a mile and a half beneath the seabed."

Norway's government is covering 80% of the $1 billion first phase, with another $714 million from three fossil fuel companies toward an ongoing expansion (with an additional $150 million E.U. subsidy). As Europe's top oil and gas producer, Norway is using its fossil fuel income to see if they can make "carbon dumping" work. The world's first carbon shipment arrived this summer, carrying 7,500 metric tons of liquefied CO2 from a Norwegian cement factory that otherwise would have gone into the atmosphere... If all goes as planned, the project's backers — Shell, Equinor and TotalEnergies, along with Norway — say their facility could pump 5 million metric tons of carbon dioxide underground each year, or about a tenth of Norway's annual emissions...

[At the Heidelberg Materials cement factory in Brevik, Norway], when hot CO2-laden air comes rushing out of the cement kilns, the plant uses seawater from the neighboring fjord to cool it down. The cool air goes into a chamber where it gets sprayed with amine, a chemical that latches onto CO2 at low temperatures. The amine mist settles to the bottom, dragging carbon dioxide down with it. The rest of the air floats out of the smokestack with about 85 percent less CO2 in it, according to project manager Anders Pettersen. Later, Heidelberg Materials uses waste heat from the kilns to break the chemical bonds, so that the amine releases the carbon dioxide. The pure CO2 then goes into a compressor that resembles a giant steel heart, where it gets denser and colder until it finally becomes liquid. That liquid CO2 remains in storage tanks until a ship comes to carry it away. At best, operators expect this system to capture half the plant's CO2 emissions: 400,000 metric tons per year, or the equivalent of about 93,000 cars on the road...

[T]hree other companies are lined up to follow: Ørsted, which will send CO2 from two bioenergy plants in Denmark; Yara, which will send carbon from a Dutch fertilizer factory; and Stockholm Exergi, which will capture carbon from a Swedish bioenergy plant that burns wood waste. All of these projects have gotten significant subsidies from national governments and the European Union — essentially de-risking the experiment for the companies. Experts say the costs and headaches of installing and running carbon-capture equipment may start to make more financial sense as European carbon rules get stricter and the cost of emitting a ton of carbon dioxide goes up. Still, they say, it's hard to imagine many companies deciding to invest in carbon capture without serious subsidies...

The first shipments are being transported by Northern Pioneer, the world's biggest carbon dioxide tanker ship, built specifically for this project. The 430-foot ship can hold 7,500 metric tons of CO2 in tanks below deck. Those tanks keep it in a liquid state by cooling it to minus-15 degrees Fahrenheit and squeezing it with the same pressure the outside of a submarine would feel 500 feet below the waves. While that may sound extreme, consider that the liquid natural gas the ship uses for fuel has to be stored at minus-260 degrees. "CO2 isn't difficult to make it into a liquid," said Sally Benson, professor of energy science and engineering at Stanford University. Northern Pioneer is designed to emit about a third less carbon dioxide than a regular ship — key for a project that aims to eliminate carbon emissions. The ship burns natural gas, which emits less CO2 than marine diesel produces (though gas extraction is associated with methane leaks). The vessel uses a rotor sail to capture wind power. And it blows a constant stream of air bubbles to reduce friction as the hull cuts through the water, allowing it to burn less fuel. For every 100 tons of CO2 that Northern Lights pumps underground, it expects to emit three tons of CO2 into the atmosphere, mainly by burning fuel for shipping.
Eventually the carbon flows into a pipeline "that plunges through the North Sea and into the rocky layers below it — an engineering feat that's a bit like drilling for oil in reverse..." according to the article.

"Over the centuries, it should chemically react with the rock, eventually being locked away in minerals."

"A Chinese mega-constellation of communications satellites is facing serious delays," reports the South China Morning Post, "that could jeopardise its ambitions to compete with SpaceX's Starlink for valuable orbital resources." Only 90 satellites have been launched into low Earth orbit for the Qianfan broadband network — also known as the Thousand Sails Constellation or G60 Starlink — well short of the project's goal of 648 by the end of this year... Shanghai Yuanxin Satellite Technology, the company leading the project, plans to deploy more than 15,000 satellites by 2030 to deliver direct-to-phone internet services worldwide. To stay on track, Yuanxin — which is backed by the Shanghai municipal government — would have to launch more than 30 satellites a month to achieve its milestones of 648 by the end of 2025 for regional coverage and 1,296 two years later for global connectivity.
The New York Times reports that "the other megaconstellation, Guowang, is even farther behind. Despite plans to launch about 13,000 satellites within the next decade, it has 34 in orbit." A constellation has to launch half of its satellites within five years of successfully applying for its frequencies, and complete the full deployment within seven years, according to rules set by the International Telecommunication Union, a United Nations agency that allocates frequencies. The Chinese megaconstellations are behind on these goals. Companies that fail to hit their targets could be required to reduce the size of their megaconstellations.
Meanwhile SpaceX "has about 8,000 Starlink satellites in orbit and is expanding its lead every month," the Times writes, citing data from the U.S. Space Force and the nonprofit space-data group CelesTrak. (The Times has even created an animation showing Starlink's 8,000 satellites in orbit.) Researchers for the People's Liberation Army predict that the network will become "deeply embedded in the U.S. military combat system." They envision a time when Starlink satellites connect U.S. military bases and serve as an early missile-warning and interception network....

One of the major reasons for China's delay is the lack of a reliable, reusable launcher. Chinese companies still launch satellites using single-use rockets. After the satellites are deployed, rocket parts tumble back to Earth or become space debris... Six years after [SpaceX's] Falcon 9 began launching Starlink satellites, Chinese firms still have no answer to it... The government has tested nearly 20 rocket launchers in the "Long March" series.

At this weekend's Comic-Con, "Excitement has been high over the sneak peeks at Tron: Ares and Predator: Badlands," reports CNET. (Nine Inch Nails has even recorded a new song for Tron: Ares .)

A few highlights from CNET's coverage:

• The Coyote vs. Acme movie will hit theaters next year "after being rescued from the pile of scrapped ashes left by Warner Bros. Discovery," with footage screened during a Comic-Con panel.

• The first episode of Alien: Earth was screened before its premiere August 12th on FX.

• A panel reunited creators of the animated Avatar: The Last Airbender for its 20th anniversary — and discussed the upcoming sequel series Avatar: Seven Havens.

• A trailer dropped for the new Star Trek: Starfleet Academy series on Paramount+ ("Star Trek Goes Full Gen Z..." quips one headline.)

To capture some of the ambience, the Guardian has a collection of cosplayer photos. CNET notes there's even booths for Lego and Hot Wheels (which released toys commemorating the 40th anniversary of Back to the Future and the 50th anniversary of Jaws).

But while many buildings are "wrapped" with slick advertisements, SFGate notes the ads are technically illegal, "with penalties for each infraction running up to $1,000 per day," (according to the San Diego Union-Tribune). "Last year's total ended up at $22,500."

The Union-Tribune notes that "The fines are small enough that advertisers clearly think it is worth it, with about 30 buildings in the process of being wrapped Monday morning."

"Google has signed its first partnership with a long-duration energy storage company," reports Data Center Dynamics. "The tech giant signed a long-term partnership with Energy Dome to support multiple commercial deployments worldwide to help scale the company's CO2 battery technology."

Google explains in a blog post that the company's technology "can store excess clean energy and then dispatch it back to the grid for 8-24 hours, bridging the gap between when renewable energy is generated and when it is needed." Reuters explains the technology: Energy Dome's CO2-based system stores energy by compressing and liquefying carbon dioxide, which is later expanded to generate electricity. The technology avoids the use of scarce raw materials such as lithium and copper, making it potentially attractive to European policymakers seeking to reduce reliance on critical minerals and bolster energy security.
"Unlike other gases, CO2 can be compressed at ambient temperatures, eliminating the need for expensive cryogenic features," notes CleanTechnica, calling this "a unique new threat to fossil fuel power plants." Google's move "means that more wind and solar energy than ever before can be put to use in local grids." Pumped storage hydropower still accounts for more than 90% of utility scale storage in the US, long duration or otherwise... Energy Dome claims to beat lithium-ion batteries by a wide margin, currently aiming for a duration of 8-24 hours. The company aims to hit the 10-hour mark with its first project in the U.S., the "Columbia Energy Storage Project" under the wing of the gas and electricity supplier Alliant Energy to be located in Pacific, Wisconsin... [B]ut apparently Google has already seen more than enough. An Energy Dome demonstration project has been shooting electricity into the grid in Italy for more than three years, and the company recently launched a new 20-megawatt commercial plant in Sardinia.
Google points out this is one of several Google clean energy initiatives :

• In June Google signed the largest direct corporate offtake agreement for fusion energy with Commonwealth Fusion Systems.

• In October Google agreed to purchase "advanced nuclear" power from multiple small modular reactors being developed by Kairos Power.

• Google also partnered with a clean-energy startup to develop a geothermal power project that contributes carbon-free energy to the electric grid.

Remember asteroid 2024 YR4 (which at one point had a 1 in 32 chance of hitting Earth, before ending up at "impact probability zero")? CNN reports that asteroid is now "zooming beyond the reach of telescopes on its orbit around the sun."

"But as scientists wait for it to reappear, its revised trajectory is now drawing attention to another possible target: the moon." The latest observations of the asteroid in early June, before YR4 disappeared from view, have improved astronomers' knowledge of where it will be in seven years by almost 20%, according to NASA. That data shows that even with Earth avoiding direct impact, YR4 could still pose a threat in late 2032 by slamming into the moon. ["The asteroid's probability of impacting the Moon has slightly increased from 3.8% to 4.3%," writes NASA, and "it would not alter the Moon's orbit."]
CNN calls the probabiliy "small but decent enough odds for scientists to consider how such a scenario might play out." The collision could create a bright flash that would be visible with the naked eye for several seconds, according to Wiegert, lead author of a recent paper submitted to the American Astronomical Society journals analyzing the potential lunar impact. The collision could create an impact crater on the moon estimated at 1 kilometer wide (0.6 miles wide), Wiegert said... It would be the largest impact on the moon in 5,000 years and could release up to 100 million kilograms (220 million pounds) of lunar rocks and dust, according to the modeling in Wiegert's study... Particles the size of large sand grains, ranging from 0.1 to 10 millimeters in size, of lunar material could reach Earth between a few days and a few months after the asteroid strike because they'll be traveling incredibly fast, creating an intense, eye-catching meteor shower, Wiegert said.

"There's absolutely no danger to anyone on the surface," Wiegert said. "We're not expecting large boulders or anything larger than maybe a sugar cube, and our atmosphere will protect us very nicely from that. But they're traveling faster than a speeding bullet, so if they were to hit a satellite, that could cause some damage...." Hundreds to thousands of impacts from millimeter-size debris could affect Earth's satellite fleet, meaning satellites could experience up to 10 years' equivalent of meteor debris exposure in a few days, Wiegert said... While a temporary loss of communication and navigation from satellites would create widespread difficulties on Earth, Wiegert said he believes the potential impact is something for satellite operators, rather than the public, to worry about.
"Any missions in low-Earth orbit could also be in the pathway of the debris, though the International Space Station is scheduled to be deorbited before any potential impact," reports CNN.

And they add that Wiegert also believes even small pieces of debris (tens of centimeters in size) "could present a hazard for any astronauts who may be present on the moon, or any structures they have built for research and habitation... The moon has no atmosphere, so the debris from the event could be widespread on the lunar surface, he added."

"So far, all lifeforms on Earth have a phosphorous-based chemistry, particularly as the backbone of DNA," writes longtime Slashdot reader bshell. "In 2010, a paper was published in Science claiming that arsenic-based bacteria were living in a California lake (in place of phosphorous). That paper was finally retracted by the journal Science the other day." From a report: : Some scientists are celebrating the move, but the paper's authors disagree with it -- saying that they stand by their data and that a retraction is not merited. In Science's retraction statement, editor-in-chief Holden Thorp says that the journal did not retract the paper when critics published take-downs of the work because, back then, it mostly reserved retractions for cases of misconduct, and "there was no deliberate fraud or misconduct on the part of the authors" of the arsenic-life paper. But since then, Science's criteria for retracting papers have expanded, he writes, and "if the editors determine that a paper's reported experiments do not support its key conclusions," as is the case for this paper, a retraction is now appropriate.

"It's good that it's done," says microbiologist Rosie Redfield, who was a prominent critic of the study after its publication in 2010 and who is now retired from the University of British Columbia in Vancouver, Canada. "Pretty much everybody knows that the work was mistaken, but it's still important to prevent newcomers to the literature from being confused." By contrast, one of the paper's authors, Ariel Anbar, a geochemist at Arizona State University in Tempe, says that there are no mistakes in the paper's data. He says that the data could be interpreted in a number of ways, but "you don't retract because of a dispute about data interpretation." If that's the standard you were to apply, he says, "you'd have to retract half the literature."

alternative_right shares a report from Phys.org: Driven by high temperatures in the Gulf, Hurricane Ian rapidly intensified from a Category 3 to Category 5 before making landfall in Southwest Florida on September 28, 2022. The deadly storm caught many by surprise and became the costliest hurricane in state history. Now, researchers from the University of South Florida say they've identified what may have caused Ian to develop so quickly. A strong ocean current called the Loop Current failed to circulate water in the shallow region of the Gulf. As a result, subsurface waters along the West Coast of Florida remained unusually warm during the peak of hurricane season. [...]

The researchers found that if the Loop Current reaches an area near the Dry Tortugas, which they call the "pressure point," it can flush warm waters from the West Florida Shelf and replace it with cold water from deeper regions of the Gulf. This pressure point is where the shallow contours of the seafloor converge, forcing cold water to the surface in a process known as upwelling. In the months leading up to Hurricane Ian, the Loop Current did not reach the pressure point, leaving the waters on the shelf unmixed, which caused both the surface and subsurface waters on the West Florida Shelf to remain warm throughout summer. The findings have been published in Geophysical Research Letters.

Scientists led by Daniel Harrison at Southern Cross University conducted their most successful test of marine cloud brightening technology in February, deploying three vessels nicknamed "Big Daddy and the Twins" in the Palm Islands off northeastern Australia. The ships pumped seawater through hundreds of tiny nozzles to create dense fog plumes and brighten existing clouds, aiming to shade and cool reef waters to prevent coral bleaching caused by rising ocean temperatures.

Harrison's team has been investigating weather modification above the Great Barrier Reef since 2016 and represents the only group conducting open-ocean cloud brightening experiments. The localized geoengineering approach seeks to reduce stress on corals that forces them to expel symbiotic algae during heat waves.