A new study lends credence to the radical idea that our universe sits within a black hole.

Breakthrough Energy, the climate group founded by Bill Gates, has laid off dozens of employees in the U.S. and Europe, eliminating its public policy and partnerships teams as it shifts away from advocacy work. Its investment and grantmaking divisions will remain unaffected. The Detroit News reports: Breakthrough Energy is an umbrella organization founded by Gates that houses various initiatives aimed at accelerating the clean energy transition. It also encompasses Breakthrough Energy Ventures, one of the biggest investors in early-stage climate technologies with stakes in more than 120 companies, as well as a grantmaking program for early-seed stage company founders and Breakthrough Catalyst, a funding platform focused on emergent climate technologies. None of those divisions of the group were impacted by cuts, which were reported earlier by the New York Times.

[…] “In the United States especially, the conversation about climate has been sidetracked by politics,” Gates wrote in the introduction to his 2021 book. “Some days, it can seem as if we have little hope of getting anything done.” The climate pullback is happening at the same time as the US cuts foreign aid, a field where Gates is also a major donor. His nonprofit, the Gates Foundation, operates with a budget of billions and has a strong focus on overseas development. “Bill Gates remains as committed as ever to advancing the clean energy innovations needed to address climate change,” a Breakthrough Energy spokesperson said in an emailed statement. “His work in this area will continue and is focused on helping drive reliable affordable, clean energy solutions that will enable people everywhere to thrive.”

On Wednesday, the EPA announced the agency will “undertake 31 historic actions in the greatest and most consequential day of deregulation in U.S. history…”

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A new study published in the Journal of Geophysical Research Planets reveals that atmospheric gravity waves play a crucial role in driving latitudinal air currents on Mars, particularly at high altitudes. Phys.Org reports: The study applied methods developed to explore Earth’s atmosphere to quantitatively estimate the influence of gravity waves on Mars’ planetary circulation. […] “On Earth, large-scale atmospheric waves caused by the planet’s rotation, known as Rossby waves, are the primary influence on the way air circulates in the stratosphere, or the lower part of the middle atmosphere. But our study shows that on Mars, gravity waves (GWs) have a dominant effect at the mid and high latitudes of the middle atmosphere,” said Professor Kaoru Sato from the Department of Earth and Planetary Science. “Rossby waves are large-scale atmospheric waves, or resolved waves, whereas GWs are unresolved waves, meaning they are too fine to be directly measured or modeled and must be estimated by more indirect means.”

Not to be confused with gravitational waves from massive stellar bodies, GWs are an atmospheric phenomenon when a packet of air rises and falls due to variations in buoyancy. That oscillating motion is what gives rise to GWs. Due to the small-scale nature of them and the limitations of observational data, researchers have previously found it challenging to quantify their significance in the Martian atmosphere. So Sato and her team turned to the Ensemble Mars Atmosphere Reanalysis System (EMARS) dataset, produced by a range of space-based observations over many years, to analyze seasonal variations up there.

“We found something interesting, that GWs facilitate the rapid vertical transfer of angular momentum, significantly influencing the meridional, or north-south, in the middle atmosphere circulations on Mars,” said graduate student Anzu Asumi. “It’s interesting because it more closely resembles the behavior seen in Earth’s mesosphere rather than in our stratosphere. This suggests existing Martian atmospheric circulation models may need to be refined to better incorporate these wave effects, potentially improving future climate and weather simulations.”

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An anonymous reader quotes a report from 404 Media: Last week, Aix Marseille University, France’s largest university, invited American scientists who believe their work is at risk of being censored by Donald Trump administration’s anti-science policies to continue their research in France. Today, the university announced that it is already seeing great interest from scientists at NASA, Yale, Stanford, and other American schools and government agencies, and that it wants to expand the program to other schools and European countries to absorb all the researchers who want to leave the United States. “We are witnessing a new brain drain,” Eric Berton, Aix Marseille University’s president, said in a press release. “We will do everything in our power to help as many scientists as possible continue their research. However, we cannot meet all demands on our own. The Ministry of Education and Research is fully supporting and assisting us in this effort, which is intended to expand at both national and European levels.”

The press release from the university claims that researchers from Stanford, Yale, NASA, the National Institute of Health, George Washington University, “and about 15 other prestigious institutions,” are now considering “scientific exile.” More than 40 American scientists have expressed interest in the program, it said. Their key research areas are “health (LGBT+ medicine, epidemiology, infectious diseases, inequalities, immunology, etc.), environment and climate change (natural disaster management, greenhouse gases, social impact, artificial intelligence), humanities and social sciences (communication, psychology, history, cultural heritage), astrophysics.”

“The current Executive Orders have led to a termination of one of my research grants. While it was not a lot of money, it was a high profile, large national study,” one researcher who has reached out to Aix Marseille University in order to take advantage of the program told me. 404 Media granted the researcher anonymity because speaking about the program might jeopardize their current position at a leading American university. “While I have not had to lay off staff as a result of that particular cancellation, I will have to lay off staff if additional projects are terminated. Everything I focus on is now a banned word.” The program, called “Safe Place for Science,” initially will fund 15 researchers with 15 million Euros. Aix Marseille University says that it is already working closely with the regional government and France’s Chamber of Commerce and Industry “to facilitate the arrival of these scientists and their families in the region, offering support with employment, housing, school access, transportation, and visas.” “We are doing what is necessary to provide them with the best living environment. We are ready to welcome them and will make them true children of the country!” Renaud Muselier, President of the Regional Council of Provence-Alpes-Cote d’Azur, said in a statement.

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In late 2023, the FBI alerted the Littleton Electric Light and Water Departments (LELWD) that it had been breached by a Chinese-state-sponsored hacking group for over 300 days. With the help of cybersecurity firm Dragos and Department of Energy-funded sensors, LELWD confirmed the intrusion, identified the hackers’ movements, and ultimately restructured its network to remove them. PCMag reports: At the time, LELWD had been installing sensors from cybersecurity firm Dragos with the help of Department of Energy grants awarded by the American Public Power Association (APPA). “The sensors helped LELWD confirm the extent of the malicious activity on the system and pinpoint when and where the attackers were going on the utility’s networks,” the APPA said last year. Today, Dragos released a case study (PDF) about the hack, which it blamed on Voltzite, a “sophisticated threat group…that overlaps with Volt Typhoon.”

The call from the FBI forced Dragos “to deploy quickly and bypass the planned onboarding timeline” for the LELWD, it says. It discovered that Volt Typhoon “had persistent access to LELWD’s network.” Hackers were looking for specific data related to [operational technology] operating procedures and spatial layout data relating to energy grid operations,” Dragos tells SecurityWeek. In the end, Dragos confirmed the compromised systems did not contain “customer-sensitive data,” and LEWLD changed their network architecture to kick Volt Typhoon out, the case study says. Groups like Volt Typhoon, “don’t always go for high-profile targets first,” said Ensar Seker, Chief Security Officer at SOCRadar. “Small, underfunded utilities can serve as low-hanging fruit, allowing adversaries to test tactics, develop footholds, and pivot toward larger targets.”

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On March 9, older Chromecast and Chromecast Audio devices stopped working due to an expired device authentication certificate authority that made them untrusted by Google’s apps. While unofficial apps like VLC continue to function, Google’s fix will require either updating client apps to bypass the issue or replacing the expired certificates, a process that could take weeks; however, Google has since announced it is beginning a gradual rollout of a fix. The Register reports: Tom Hebb, a former Meta software engineer and Chromecast hacker, has published a detailed analysis of the issue and suggests a fix could take more than a month to prepare. He’s also provided workarounds here for folks to try in the meantime. We spoke to Hebb, and he says the problem is this expired device authentication certificate authority. […] The fix is not simple. It’s either going to involve a bit of a hack with updated client apps to accept or workaround the situation, or somehow someone will need to replace all the key pairs shipped with the devices with ones that use a new valid certificate authority. And getting the new keys onto devices will be a pain as, for instance, some have been factory reset and can’t be initialized by a Google application because the bundled cert is untrusted, meaning the client software needs to be updated anyway.

Given that the product family has been discontinued, teams will need to be pulled together to address this blunder. And it does appear to be a blunder rather than planned or remotely triggered obsolescence; earlier Chromecasts have a longer certificate validity, of 20 years rather than 10. “Google will either need to put in over a month of effort to build and test a new Chromecast update to renew the expired certificates, or they will have to coordinate internally between what’s left of the Chromecast team, the Android team, the Chrome team, the Google Home team, and iOS app developers to push out new releases, which almost always take several days to build and test,” Hebb explained. “I expect them to do the latter. A server-side fix is not possible.”

So either a week or so to rush out app-side updates to tackle the problem, or much longer to fix the problem with replaced certs. Polish security researcher Maciej Mensfeld also believes the outage is most likely due to an expired device authentication certificate authority. He’s proposed a workaround that has helped some users, at least. Hebb, meanwhile, warns more certificate authority expiry pain is looming, with the Chromecast Ultra and Google Home running out in March next year, and the Google Home Mini in January 2027.

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