America's next president "announced Wednesday he has selected Jared Isaacman, a billionaire businessman and space enthusiast who twice flew to orbit with SpaceX, to become the next NASA administrator," reports Ars Technica: In a post on X, Isaacman said he was "honored" to receive Trump's nomination. "Having been fortunate to see our amazing planet from space, I am passionate about America leading the most incredible adventure in human history," Isaacman wrote. "On my last mission to space, my crew and I traveled farther from Earth than anyone in over half a century. I can confidently say this second space age has only just begun...."

"Jared Isaacman will be an outstanding NASA Administrator and leader of the NASA family," said Jim Bridenstine, who led NASA as administrator during Trump's first term in the White House. "Jared's vision for pushing boundaries, paired with his proven track record of success in private industry, positions him as an ideal candidate to lead NASA into a bold new era of exploration and discovery. I urge the Senate to swiftly confirm him." Lori Garver, NASA's deputy administrator during the Obama administration, wrote on X that Isaacman's nomination was "terrific news," adding that "he has the opportunity to build on NASA's amazing accomplishments to pave our way to an even brighter future."

Isaacman, 41, is the founder and CEO of Shift4, a mobile payment processing platform, and co-founded Draken International, which owns a fleet of retired fighter jets to pose as adversaries for military air combat training... Isaacman, an evangelist for the commercial space industry, has criticized some of NASA's decisions on the Artemis program. In several posts on X, he questioned the agency's decision to fund two redundant lunar landers, while not planning for any backup to the Space Launch System (SLS) rocket, which costs $2.2 billion per copy, not including expenses for ground infrastructure or the Orion spacecraft itself. One of those casualties might be the SLS rocket. The program is managed by NASA, with suppliers spread across the United States and prime contractors working under cost-plus arrangements with the space agency, meaning the government is on the hook to pay for any delays or cost overruns.
If confirmed he'll be the 4th NASA administrator who's actually flown in space, according to the article.

And according to Wikipedia, Isaacman was the commander of Inspiration4, a private spaceflight using SpaceX's Crew Dragon Resilience that launched in 2021. The crew returned to Earth on September 18, 2021, after orbiting at 585 km (364 mi) in altitude. The mission was part of a fundraiser for St. Jude Children's Research Hospital, to which Isaacman pledged to donate $100 million.
Thanks to Slashdot reader FallOutBoyTonto for sharing the news.

A handful of countries should be held legally responsible for the ongoing impacts of climate change, representatives of vulnerable states have told judges at the international court of justice (ICJ). From a report: During a hearing at the Peace Palace in The Hague, which began on Monday, Ralph Regenvanu, Vanuatu's special envoy for climate change and environment, said responsibility for the climate crisis lay squarely with "a handful of readily identifiable states" that had produced the vast majority of greenhouse gas emissions but stood to lose the least from the impacts.

The court heard how Pacific island states such as Vanuatu were bearing the brunt of rising sea levels and increasingly frequent and severe disasters. "We find ourselves on the frontlines of a crisis we did not create," Regenvanu said. The hearing is the culmination of years of campaigning by a group of Pacific island law students and diplomacy spearheaded by Vanuatu. In March last year the UN general assembly unanimously approved a resolution calling on the ICJ to provide an advisory opinion on what obligations states have to tackle climate change and what the legal consequences could be if they fail to do so.

Over the next two weeks, the court will hear statements from 98 countries, including wealthy developed states with the greatest historical responsibility for the climate emergency, such as the UK and Russia, and states that have contributed very little to global greenhouse gas emissions but stand to bear the brunt of their impact, including Bangladesh and Sudan as well as Pacific island countries.

"If NASA establishes a permanent presence on the moon, its astronauts' homes could be made of a new 3D-printable, waterless concrete," writes MIT Technology Review. "Someday, so might yours.

"By accelerating the curing process for more rapid construction, this sulfur-based compound could become just as applicable on our home terrain as it is on lunar soil..." Building a home base on the moon will demand a steep supply of moon-based infrastructure: launch pads, shelter, and radiation blockers. But shipping Earth-based concrete to the lunar surface bears a hefty price tag. Sending just 1 kilogram (2.2 pounds) of material to the moon costs roughly $1.2 million, says Ali Kazemian, a robotic construction researcher at Louisiana State University (LSU). Instead, NASA hopes to create new materials from lunar soil and eventually adapt the same techniques for building on Mars.

Traditional concrete requires large amounts of water, a commodity that will be in short supply on the moon and critically important for life support or scientific research, according to the American Society of Civil Engineers. While prior NASA projects have tested compounds that could be used to make "lunarcrete," they're still working to craft the right waterless material.

So LSU researchers are refining the formula, developing a new cement based on sulfur, which they heat until it's molten to bind material without the need for water. In recent work, the team mixed their waterless cement with simulated lunar and Martian soil to create a 3D-printable concrete, which they used to assemble walls and beams. "We need automated construction, and NASA thinks 3D printing is one of the few viable technologies for building lunar infrastructure," says Kazemian.

Beyond circumventing the need for water, the cement can handle wider temperature extremes and cures faster than traditional methods. The group used a pre-made powder for their experiments, but on the moon and Mars, astronauts might extract sulfur from surface soil.
Kazemian and his colleagues recently transferred the technology to NASA's Marshall Space Flight Center for further testing...

An anonymous reader shared this report from Reuters: The rapid increase in satellites and space junk will make low Earth orbit unusable unless companies and countries cooperate and share the data needed to manage that most accessible region of space, experts and industry insiders said. A United Nations panel on space traffic coordination in late October determined that urgent action was necessary and called for a comprehensive shared database of orbital objects as well as an international framework to track and manage them. More than 14,000 satellites including some 3,500 inactive surround the globe in low Earth orbit, showed data from U.S.-based Slingshot Aerospace. Alongside those are about 120 million pieces of debris from launches, collisions and wear-and-tear of which only a few thousand are large enough to track... [T]here is no centralised system that all space-faring nations can leverage and even persuading them to use such a system has many obstacles. Whereas some countries are willing to share data, others fear compromising security, particularly as satellites are often dual-use and include defence purposes. Moreover, enterprises are keen to guard commercial secrets.

In the meantime, the mess multiplies. A Chinese rocket stage exploded in August, adding thousands of fragments of debris to low Earth orbit. In June, a defunct Russian satellite exploded, scattering thousands of shards which forced astronauts on the International Space Station to take shelter for an hour... Projections point to tens of thousands more satellites entering orbit in the coming years. The potential financial risk of collisions is likely to be $556 million over five years, based on a modelled scenario with a 3.13% annual collision probability and $111 million in yearly damages, said Montreal-based NorthStar Earth & Space...

[Aarti Holla-Maini, director of the U.N . Office for Outer Space Affairs], said the October panel aimed to bring together public- and private-sector experts to outline steps needed to start work on coordination. It will present its findings at a committee meeting next year. Global cooperation is essential to developing enforceable rules akin to those used by the International Civil Aviation Organization for air traffic, industry experts told Reuters. Such effort would involve the use of existing tools, such as databases, telescopes, radars and other sensors to track objects while improving coverage, early detection and data precision. Yet geopolitical tension and reluctance to share data with nations deemed unfriendly as well as commercial concerns over protecting proprietary information and competitive advantages remain significant barriers. That leaves operators of orbital equipment relying on informal or semi-formal methods of avoiding collisions, such as drawing on data from the U.S. Space Force or groups like the Space Data Association. However, this can involve issues such as accountability and inconsistent data standards.

"The top challenges are speed — as consensus-building takes time — and trust," Holla-Maini said. "Some countries simply can't communicate with others, but the U.N. can facilitate this process. Speed is our biggest enemy, but there's no alternative. It must be done."
Data from Slingshot Aerospace shows a 17% rise in close approaches per satellite over the past year, according to the article. (It adds that SpaceX data "showed Starlink satellites performed nearly 50,000 collision-avoidance manoeuvres in the first half of 2024, about double the previous six months...)

The European Space Agency, which has fewer spacecraft than SpaceX, said in 2021 its manoeuvres have increased to three or four times per craft versus a historical average of one."

United Nations members gathered this week in Busan, South Korea to negotiate the first treaty reducing plastic pollution. But Politico reports that "talks collapsed late Sunday after negotiators failed to resolve their differences and agree on a global plastic treaty. At the heart of the disagreement was a refusal by oil-rich nations led by Saudi Arabia to accept a deal that put limits on plastic production... Throughout the two years of talks, oil-rich and plastic-producing states had repeatedly clashed with nations that wanted to reduce plastic production to solve a worsening plastic pollution crisis. Many went to Busan hopeful differences would be put aside in the name of combatting a common global threat. But in the end this proved too optimistic...

The EU, alongside more than 100 other countries that included the U.K., on Thursday had backed a new proposal spearheaded by Panama pushing for a global target to reduce plastic production to "sustainable levels", drawing a clear battle line for the talks. But three negotiators from countries in the High Ambition Coalition to End Plastic Pollution — granted anonymity to discuss closed-door talks — told POLITICO Saudi Arabia had coordinated a push from oil-rich and plastic-producing countries to block any proposals for the treaty that threatened to reduce plastic production. The vast majority of plastic is made from oil or natural gas...

Along with disagreements over plastic production, countries were also unable to agree on whether and how to target particularly polluting plastic products, and how to finance the treaty. Two of the "high-ambition" negotiators referenced above suggested the talks were doomed to fail from the beginning, arguing that there was never going to be enough time given the scope of the mandate. "I think the pressure on us to deliver that in 18 months ... was kind of stupid then, and it's still stupid now," said one. "Usually these processes take a number of years — beyond what we are doing...." But many observers and some delegates said the summit's collapse demonstrated the failures of consensus-based environmental multilateralism, arguing that requiring all countries to agree by consensus gave reluctant nations too much veto power. NGOs like the Center for International Environmental Law hope this week's failed talks will serve as a lesson for future U.N. talks...

The date and time of the next round of talks is yet to be announced.
Greenpeace issued a statement saying "over 100 Member States, representing billions of people, rejected a toothless deal that would have accomplished nothing, and stood before the world committing to an ambitious treaty."

And they argued that the message is clear. "Ambitious countries must not allow the fossil fuel and petrochemical industries, backed by a small minority of countries, to prevent the will of the vast majority. A strong agreement that protects people and the planet is our only option."

"Spacecraft, satellites, and space-based systems all face cybersecurity threats that are becoming increasingly sophisticated and dangerous," reports CNBC.

"With interconnected technologies controlling everything from navigation to anti-ballistic missiles, a security breach could have catastrophic consequences." Critical space infrastructure is susceptible to threats across three key segments: in space, on the ground segment and within the communication links between the two. A break in one can be a cascading failure for all, said Wayne Lonstein, co-founder and CEO at VFT Solutions, and co-author of Cyber-Human Systems, Space Technologies, and Threats. "In many ways, the threats to critical infrastructure on Earth can cause vulnerabilities in space," Lonstein said. "Internet, power, spoofing and so many other vectors that can cause havoc in space," he added. The integration of artificial intelligence into space projects has heightened the risk of sophisticated cyber attacks orchestrated by state actors and individual hackers. AI integration into space exploration allows more decision-making with less human oversight.

For example, NASA is using AI to target scientific specimens for planetary rovers. However, reduced human oversight could make these missions more prone to unexplained and potentially calamitous cyberattacks, said Sylvester Kaczmarek, chief technology officer at OrbiSky Systems, which specializes in the integration of AI, robotics, cybersecurity, and edge computing in aerospace applications. Data poisoning, where attackers feed corrupted data to AI models, is one example of what could go wrong, Kaczmarek said. Another threat, he said, is model inversion, where adversaries reverse-engineer AI models to extract sensitive information, potentially compromising mission integrity. If compromised, AI systems could be used to interfere with or take control of strategically important national space missions...

The U.S. government is tightening up the integrity and security of AI systems in space. The 2023 Cyberspace Solarium Commission report stressed the importance of designating outer space as a critical infrastructure sector, urging enhanced cybersecurity protocols for satellite operators... The rivalry between the U.S. and China includes the new battleground of space. As both nations ramp up their space ambitions and militarized capabilities beyond Earth's atmosphere, the threat of cyberattacks targeting critical orbital assets has become an increasingly pressing concern... Space-based systems increasingly support critical infrastructure back on Earth, and any cyberattacks on these systems could undermine national security and economic interests.

The world's use of clean energy "is rapidly growing", reports the Washington Post, "but not fast enough to keep temperatures in check..."

Many experts say it will be the economics of clean energy that defines the future of the planet — and how developing countries choose to meet their growing electricity demands. "What happens in emerging and developing economies in the next decade in some sense is the whole ballgame," said Jason Bordoff, founding director of the Center for Global Energy Policy at Columbia University. Global greenhouse gas emissions could peak as soon as next year, according to the International Energy Agency, but are not on course to drop sharply enough to contain warming. The world would have to cut its emissions roughly in half by 2035 to meet the 1.5 C target, scientists warn, in part because carbon dioxide stays in the atmosphere for centuries.

Instead, the U.N. projects that nations' current policies will lead to 3.1 C of warming by 2100, or as little as 2.6 C if the strongest pledges are kept. This would represent substantial progress from when the Paris agreement was adopted, when scientists expected a 4 C (7.2 F) rise in temperatures by century's end... Still, the U.N. Intergovernmental Panel on Climate Change predicts "dangerous and widespread disruption" on the current path. The Greenland ice sheet might tip into irreversible collapse, according to the IPCC, threatening cities from New York to Shanghai, while extreme heat and humidity could make large swaths of the world effectively uninhabitable. Scientists also expect a growing toll of disease, crop failures and weather disasters. It would likely take thousands of years for Greenland's ice to completely vanish, but other impacts — like the death of coral reefs worldwide and month-long heat waves — could come in a matter of decades. If countries wish to avoid these consequences, they will have to spend vast sums on adaptation. From now through 2030, poor nations will need up to $387 billion per year to adapt to mounting climate disasters, according to a recent U.N. report...

[Much of the progress on curbing emissions] has come from the United States' switch from coal to natural gas and renewables, and the European Union's rapid embrace of wind and solar power... But the demand for power is also rising, complicating these efforts. According to a recent report from the International Energy Agency, countries are expected to add electricity demand equivalent to the entire nation of Japan every year — thanks to the growth of EVs, the rapid build-out of AI data centers, and a surge in a need for air conditioning in developing countries. That growth in demand means that even as clean energy is added to the grid, fossil fuel use hasn't decreased. And unless countries close coal and gas plants and shut down oil drilling, emissions won't start to come down.

"Two things can both be true: Clean energy is breaking almost every record you can imagine," Bordoff said. "And oil use is going up, and gas use is going up, and coal use is going up."

"Polar oceans constitute emission hotspots during the summer," according to a new paper published in the peer-reviewed scientific journal Science Advances. "And including those sea-to-air fluxes in an atmospheric chemistry-climate model "results in a net radiative effect that has far-reaching implications."

The research was led by a team of scientists from Spain's Institute of Marine Sciences and the Blas Cabrera Institute of Physical Chemistry, according to an announcement from the UK's University of East Anglia: Researchers have quantified for the first time the global emissions of a sulfur gas produced by marine life, revealing it cools the climate more than previously thought, especially over the Southern Ocean. The study, published in the journal Science Advances, shows that the oceans not only capture and redistribute the sun's heat, but produce gases that make particles with immediate climatic effects, for example through the brightening of clouds that reflect this heat.

It broadens the climatic impact of marine sulfur because it adds a new compound, methanethiol, that had previously gone unnoticed. Researchers only detected the gas recently, because it used to be notoriously hard to measure and earlier work focussed on warmer oceans, whereas the polar oceans are the emission hotspots...

Their findings represent a major advance on one of the most groundbreaking theories proposed 40 years ago about the role of the ocean in regulating the Earth's climate. This suggested that microscopic plankton living on the surface of the seas produce sulfur in the form of a gas, dimethyl sulphide, that once in the atmosphere, oxidizes and forms small particles called aerosols. Aerosols reflect part of the solar radiation back into space and therefore reduce the heat retained by the Earth. Their cooling effect is magnified when they become involved in making clouds, with an effect opposite to, but of the same magnitude as, that of the well-known warming greenhouse gases, such as carbon dioxide or methane. The researchers argue that this new work improves our understanding of how the climate of the planet is regulated by adding a previously overlooked component and illustrates the crucial importance of sulfur aerosols. They also highlight the magnitude of the impact of human activity on the climate and that the planet will continue to warm if no action is taken.
The article includes this quote from one of the study's lead authors (Dr. Charel Wohl from the university's Centre for Ocean and Atmospheric Sciences). "Climate models have greatly overestimated the solar radiation actually reaching the Southern Ocean, largely because they are not capable of correctly simulating clouds. The work done here partially closes the longstanding knowledge gap between models and observations."

And the university's announcement argues that "With this discovery, scientists can now represent the climate more accurately in models that are used to make predictions of +1.5 degrees C or +2 degrees C warming, a huge contribution to policy making."

Thanks to long-time Slashdot reader schwit1 for sharing the news.

Climate change has intensified hurricane wind speeds by an average of 19 mph in 84% of North Atlantic hurricanes between 2019-2024, according to new research that links warming ocean temperatures to storm intensity for individual hurricanes.

This year, Hurricanes Helene and Milton slammed into Florida, breaking meteorological records and causing catastrophic damage. The study by Climate Central found that higher sea surface temperatures elevated most hurricanes by an entire category on the Saffir-Simpson scale, with three storms, including Hurricane Rafael, seeing wind speeds increase by 34 mph due to warming.

Researchers calculated storm intensity using models of pre-warming ocean temperatures. "It's really the evolution of our science on sea surface temperature attribution that has allowed this work to take place," said lead author Daniel Gilford, noting that hurricane damage increases exponentially with wind speed. For example, a storm with double the wind speed can cause 256 times as much damage. The methodology enables scientists to determine climate change impacts on hurricanes in near-real time.

Record numbers of plastic industry lobbyists are attending global talks that are the last chance to hammer out a treaty to cut plastic pollution around the world. From a report: The key issue at the conference will be whether caps on global plastic production will be included in the final UN treaty. Lobbyists and leading national producers are furiously arguing against any attempt to restrain the amount that can be produced, leaving the talks on a knife-edge.

New analysis by the Center for International Environmental Law (CIEL) shows 220 fossil fuel and chemical industry representatives -- more plastic producers than ever -- are represented at the UN talks in Busan, South Korea. Taken as a group, they would be the biggest delegation at the talks, with more plastic industry lobbyists than representatives from the EU and each of its member states, (191) or the host country, South Korea (140), according to the Centre for International Environmental Law. Their numbers overwhelm the 89 delegates from the Pacific small island developing states (PSIDs), countries that are among those suffering the most from plastic pollution.

Sixteen lobbyists from the plastics industry are at the talks as part of country delegations. China, the Dominican Republic, Egypt, Finland, Iran, Kazakhstan and Malaysia all have industry vested interests within their delegations, the analysis shows. The plastic producer representatives outnumber delegates from the Scientists' Coalition for an Effective Plastics Treaty by three to one. Approximately 460m tonnes of plastics are produced annually, and production is set to triple by 2060 under business-as-usual growth rates.

An anonymous reader quotes a report from Space.com: NASA scientists conducting surveys of arctic ice sheets in Greenland got an unprecedented view of an abandoned "city under the ice" built by the U.S. military during the Cold War. During a scientific flight in April 2024, a NASA Gulfstream III aircraft flew over the Greenland Ice Sheet carrying radar instruments to map the depth of the ice sheet and the layers of bedrock below it. The images revealed a new view of Camp Century, a Cold War-era U.S. military base consisting of a series of tunnels carved directly into the ice sheet.

As it turns out, this abandoned "secret city" was the site of a secret Cold War project known as Project Iceworm [that] called for the construction of 2,500 miles (4,023 km) of tunnels that could be used [for] nuclear intermediate range ballistic missiles (IRBMs) at the Soviet Union. "We were looking for the bed of the ice and out pops Camp Century. We didn't know what it was at first," said NASA's Chad Greene, a cryospheric scientist at the agency's Jet Propulsion Laboratory (JPL), in an agency statement. "In the new data, individual structures in the secret city are visible in a way that they've never been seen before." "Weapons, sewage, fuel and other contaminants were buried at Camp Century when it was abandoned, but the thawing Greenland Ice Sheet threatens to unbury these dangerous relics," reports Space.com. In 2017, the U.S. government issued a statement saying it "acknowledges the reality of climate change and the risk it poses" and will "work with the Danish government and the Greenland authorities to settle questions of mutual security" over Camp Century.

Scientists are using Camp Century to serve as a warning and a signpost to measure how climate change is affecting the area. You can learn more about Camp Century in a restored declassified U.S. Army film on YouTube.

Longtime Slashdot reader AmiMoJo shares a report from Phys.org: Researchers from Imperial College London have discovered that a space-returned sample from asteroid Ryugu was rapidly colonized by terrestrial microorganisms, even under stringent contamination control measures. In the study, [...] researchers analyzed sample A0180, a tiny (1 x 0.8 mm) particle collected by the JAXA Hayabusa 2 mission from asteroid Ryugu.

Transported to Earth in a hermetically sealed chamber, the sample was opened in nitrogen in a class 10,000 clean room to prevent contamination. Individual particles were picked with sterilized tools and stored under nitrogen in airtight containers. Before analysis, the sample underwent Nano-X-ray computed tomography and was embedded in an epoxy resin block for scanning electron microscopy. Rods and filaments of organic matter, interpreted as filamentous microorganisms, were observed on the sample's surface. Variations in size and morphology of these structures resembled known terrestrial microbes. Observations showed that the abundance of these filaments changed over time, suggesting the growth and decline of a prokaryote population with a generation time of 5.2 days.

Population statistics indicate that the microorganisms originated from terrestrial contamination during the sample preparation stage rather than being indigenous to the asteroid. Results of the study determined that terrestrial biota had rapidly colonized the extraterrestrial material, even under strict contamination control. Researchers recommend enhanced contamination control procedures for future sample-return missions to prevent microbial colonization and ensure the integrity of extraterrestrial samples. Another factor in gathering contamination-free sampling is that everything used to collect extraterrestrial material originates on a planet awash in microbial life.

An anonymous reader quotes a report from the Associated Press: Danish lawmakers on Monday agreed on a deal to plant 1 billion trees and convert 10% of farmland into forest and natural habitats over the next two decades in an effort to reduce fertilizer usage. The government called the agreement "the biggest change to the Danish landscape in over 100 years." Under the agreement, 43 billion kroner ($6.1 billion) have been earmarked to acquire land from farmers over the next two decades, the government said.

Danish forests would grow on an additional 250,000 hectares (618,000 acres), and another 140,000 hectares (346,000 acres), which are currently cultivated on climate-damaging low-lying soils, must be converted to nature. Currently, 14.6% of land is covered by forests. [...] In June, the government said livestock farmers will be taxed for the greenhouse gases emitted by their cows, sheep and pigs from 2030, the first country to do so as it targets a major source of methane emissions, one of the most potent gases contributing to global warming.

The FCC said it has approved a license for T-Mobile and SpaceX's Starlink to provide supplemental coverage to cover internet dead zones. Reuters reports: The license marks the first time the FCC has authorized a satellite operator collaborating with a wireless carrier to provide supplemental telecommunications coverage from space on some flexible-use spectrum bands allocated to terrestrial service. The partnership aims to extend the reach of wireless networks to remote areas and eliminate "dead zones."

T-Mobile and SpaceX announced a partnership in 2022 and in January the first set of satellites supporting the partnership was launched into low-Earth orbit with SpaceX's Falcon 9 rocket. "The FCC is actively promoting competition in the space economy by supporting more partnerships between terrestrial mobile carriers and satellite operators to deliver on a single network future that will put an end to mobile dead zones," said FCC Chair Jessica Rosenworcel.

An asteroid named 2024 PT5, recently exhibiting "mini moon" behavior around Earth, may have been a boulder that was blasted off the moon by an impacting, crater-forming asteroid," reports the Associated Press. The 33-foot space rock is expected to pass safely near Earth in January, when it will be closely observed. From the report: While not technically a moon -- NASA stresses it was never captured by Earth's gravity and fully in orbit -- it's "an interesting object" worthy of study. The astrophysicist brothers who identified the asteroid's "mini moon behavior," Raul and Carlos de la Fuente Marcos of Complutense University of Madrid, have collaborated with telescopes in the Canary Islands for hundreds of observations so far.

Currently more than 2 million miles (3.5 million kilometers) away, the object is too small and faint to see without a powerful telescope. It will pass as close as 1.1 million miles (1.8 million kilometers) of Earth in January, maintaining a safe distance before it zooms farther into the solar system while orbiting the sun, not to return until 2055. That's almost five times farther than the moon. [...] NASA will track the asteroid for more than a week in January using the Goldstone solar system radar antenna in California's Mojave Desert, part of the Deep Space Network.

Some days more than half of California's available solar power goes to waste, according to research from the California Institute for Energy and Environment. "In the last 12 months, California's solar farms have curtailed production of more than 3 million megawatt hours of solar energy," according to a data analysis by the Los Angeles Times — enough to power 518,000 California homes for a year.

And it was curtailed "either on the orders of the state's grid operator or because prices had plummeted because of the glut. The waste would have been even larger if California had not paid utilities in other states to take the excess solar energy, documents from the state's grid operator show." That means green energy paid for by California electricity customers is sent away, lowering bills for residents of other states. Arizona's largest public utility reaped $69 million in savings last year by buying from the market California created to get rid of its excess solar power. The utility returned that money to its customers as a credit on their bills. Also reaping profits are electricity traders, including banks and hedge funds. The increasing oversupply of solar power has created a situation where energy traders can buy the excess at prices so low they become negative, said energy consultant Gary Ackerman, the former executive director of the Western Power Trading Forum. That means the solar plant is paying the traders to take it. "This is all being underwritten by California ratepayers," Ackerman said...

The solar glut also means higher electricity bills for Californians, since they are effectively paying to generate the power but not using it. California's electric rates are roughly twice the nation's average, with only Hawaii having higher rates. Rates at Southern California Edison and Pacific Gas & Electric increased by 51% over the last three years. "Ratepayers aren't getting the energy they've paid for," said Ron Miller, an energy industry consultant in Denver. He calculates that the retail value of the solar energy thrown away in a year would be more than $1 billion.

Gov. Gavin Newsom's advisors and those who manage the state's electric grid say they are working to reduce the curtailments, including by building more industrial-scale battery storage facilities that soak up the excess solar power during the day and then release it at night. Officials in the governor's office declined to be interviewed, but issued a statement saying the curtailments are often because of congestion on transmission lines, rather than a statewide oversupply of power. The state has been spending heavily to upgrade transmission lines to ease the congestion. "It's also important to have extra energy resources available that can help the state during periods of extreme weather and historic heatwaves when demand is particularly high, which have happened the past few years," the statement said...

The commercial solar industry contends that the expansion of storage capacity to bank solar power will eventually eliminate the glut.

"At points there was fear the talks would implode, as groups representing vulnerable small island states and the least-developed countries walked out of negotiations Saturday," according to a new report from CNN.

But after weeks of international climate talks at COP29, "the world agreed to a new climate deal... "with wealthy countries pledging to provide $300 billion annually by 2035 to poorer countries to help them cope with the increasingly catastrophic impacts of the climate crisis." The amount pledged, however, falls far short of the $1.3 trillion economists say is needed to help developing countries cope with a climate crisis they have done least to cause — and there has been a furious reaction from many developing countries. a fiery speech immediately after the gavel went down, India's representative Chandni Raina slammed the $300 billion as "abysmally poor" and a "paltry sum," calling the agreement "nothing more than an optical illusion" and unable to "address the enormity of the challenge we all face."

Others were equally damning in their criticism. We are leaving with a small portion of the funding climate-vulnerable countries urgently need," said Tina Stege, Marshall Islands climate envoy. Stege heavily criticized the talks as showing the "very worst of political opportunism." Fossil fuel interests "have been determined to block progress and undermine the multilateral goals we've worked to build," she said in a statement...

There was also a push for richer emerging economies such as China and Saudi Arabia to contribute to the climate funding package, but the agreement only "encourages" developing countries to make voluntary contributions, and places no obligations on them... Saudi Arabia, the world's top oil exporter, which has pushed against ambitious action at past climate summits, seemed even more emboldened in Baku, publicly and explicitly rejecting any reference to oil, coal and gas in the deal.
The package "is also being criticised as short-sighted from the richer world's perspective," notes the BBC: The argument runs that if you want to keep the world safe from rising temperatures, then wealthier nations need to help emerging economies cut their emissions, because that is where 75% of the growth in emissions has occurred in the past decade.
But "Delegations more optimistic about the agreement said this deal is headed in the right direction," writes the Associated Press, "with hopes that more money flows in the future." The text included a call for all parties to work together using "all public and private sources" to get closer to the $1.3 trillion per year goal by 2035. That means also pushing for international mega-banks, funded by taxpayer dollars, to help foot the bill. And it means, hopefully, that companies and private investors will follow suit on channeling cash toward climate action. The agreement is also a critical step toward helping countries on the receiving end create more ambitious targets to limit or cut emissions of heat-trapping gases.

"Scientists have found what seems to be the oldest direct evidence of hot water flowing on Mars during its ancient past," reports Space.com.

"The discovery could further indicate that the Red Planet, despite its arid and desolate appearance today, may have been capable of supporting life long ago." The evidence was delivered to Earth and sealed within the well-known Martian meteorite NWA7034, found in the Sahara Desert in 2011. Due to its black, highly polished appearance, the Martian rock is also known as "Black Beauty." At an estimated 2 billion years old, Black Beauty is the second oldest Martian meteorite ever discovered. However, the Curtin University team discovered something even older within it: a 4.45 billion-year-old zircon grain that harbors the fingerprints of fluids rich in water.

Team member Aaron Cavosie from Curtin's School of Earth and Planetary Sciences thinks this discovery will open up new avenues to understanding hydrothermal systems associated with the activity of volcanic magma that once ran through Mars. "We used nano-scale geochemistry to detect elemental evidence of hot water on Mars 4.45 billion years ago," Cavosie said in a statement. "Hydrothermal systems were essential for the development of life on Earth, and our findings suggest Mars also had water, a key ingredient for habitable environments, during the earliest history of crust formation...."

[T]his new research implies that water in liquid form may have existed on Mars even earlier than previously expected in the planet's pre-Noachian period.

A team of undergraduate students from the University of Southern California's Rocket Propulsion Lab set multiple amateur spaceflight records with their rocket, Aftershock II. "The student-made missile soared 90,000 feet (27,400 meters) beyond the previous record-holder -- a rocket launched more than 20 years ago," reports Live Science. From the report: The students launched Aftershock II on Oct. 20 from a site in Black Rock Desert, Nevada. The rocket stood about 14 feet (4 meters) tall and weighed 330 pounds (150 kilograms). The rocket broke the sound barrier just two seconds after liftoff and reached its maximum speed roughly 19 seconds after launch, the RPL team wrote in a Nov. 14 paper summarizing the launch. The rocket's engine then burned out, but the craft continued to climb as atmospheric resistance decreased, enabling it to leave Earth's atmosphere 85 seconds after launch and then reach its highest elevation, or apogee, 92 seconds later. At this point, the nose cone separated from the rest of the rocket and deployed a parachute so it could safely reenter the atmosphere and touch down in the desert, where it was collected by the RPL team for analysis.

The rocket's apogee was around 470,000 feet (143,300 m) above Earth's surface, which is "further into space than any non-governmental and non-commercial group has ever flown before," USC representatives wrote in a statement. The previous record of 380,000 feet (115,800 m) was set in 2004 by the GoFast rocket made by the Civilian Space Exploration Team. During the flight, Aftershock II reached a maximum speed of around 3,600 mph (5,800 km/h), or Mach 5.5 -- five and a half times the speed of sound. This was slightly faster than GoFast, which had also held the amateur speed record for 20 years.

But elevation and speed were not the only records Aftershock II broke. "This achievement represents several engineering firsts," Ryan Kraemer, an undergraduate mechanical engineering student at USC and executive engineer of the RPL team who will soon join SpaceX's Starship team, said in the statement. "Aftershock II is distinguished by the most powerful solid-propellant motor ever fired by students and the most powerful composite case motor made by amateurs."

The Register's Simon Sharwood reports: Japan's National Consumer Affairs Center on Wednesday suggested citizens start "digital end of life planning" and offered tips on how to do it. The Center's somewhat maudlin advice is motivated by recent incidents in which citizens struggled to cancel subscriptions their loved ones signed up for before their demise, because they didn't know their usernames or passwords. The resulting "digital legacy" can be unpleasant to resolve, the agency warns, so suggested four steps to simplify ensure our digital legacies aren't complicated:

- Ensuring family members can unlock your smartphone or computer in case of emergency;
- Maintain a list of your subscriptions, user IDs and passwords;
- Consider putting those details in a document intended to be made available when your life ends;
- Use a service that allows you to designate someone to have access to your smartphone and other accounts once your time on Earth ends.

The Center suggests now is the time for it to make this suggestion because it is aware of struggles to discover and resolve ongoing expenses after death. With smartphones ubiquitous, the org fears more people will find themselves unable to resolve their loved ones' digital affairs -- and powerless to stop their credit cards being charged for services the departed cannot consume.