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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Mozilla is urging Firefox users to update their browsers to version 128 or later (or ESR 115.13 for extended support users) before March 14, 2025, to avoid security risks and add-on disruptions caused by the expiration of a key root certificate. “On 14 March a root certificate (the resource used to prove an add-on was approved by Mozilla) will expire, meaning Firefox users on versions older than 128 (or ESR 115) will not be able to use their add-ons,” warns a Mozilla blog post. “We want developers to be aware of this in case some of your users are on older versions of Firefox that may be impacted.” BleepingComputer reports: A Mozilla support document explains that failing to update Firefox could expose users to significant security risks and practical issues, which, according to Mozilla, include:

– Malicious add-ons can compromise user data or privacy by bypassing security protections.
– Untrusted certificates may allow users to visit fraudulent or insecure websites without warning.
– Compromised password alerts may stop working, leaving users unaware of potential account breaches.

It is noted that the problem impacts Firefox on all platforms, including Windows, Android, Linux, and macOS, except for iOS, where there’s an independent root certificate management system. Mozilla says that users relying on older versions of Firefox may continue using their browsers after the expiration of the certificate if they accept the security risks, but the software’s performance and functionality may be severely impacted.

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The full trailer dropped today for Apple’s F1 movie. The film is getting an international theatrical release starting June 25, and will be in theaters and IMAX domestically beginning June 27. F1 has received extensive involvement from the Formula 1 world, so it’ll be fascinating to see how well it walks the line between being a good movie and feeling like a dramatic promo for the organization.

The movie is a star-studded affair, with Brad Pitt, Javier Bardem, Damson Idris, Kerry Condon, Tobias Menzies and Kim Bodnia in the cast. Joseph Kosinski, who helmed Top Gun: Maverick, is the director, Ehren Kruger wrote the screenplay and the legendary Hans Zimmer did the score. Every shot in the trailer promises that this is a luxe production, fitting for the huge piles of money that go into developing F1 cars and teams. 

F1 has the glossy sheen of a Hollywood sports drama to it. Even though it’s a work of fiction, several personalities and teams from the actual Formula 1 teams will appear in the final cut. There’s been a surge in filmmaking about this type of car racing, with Netflix also hosting its own documentary series about Formula 1.

This article originally appeared on Engadget at https://www.engadget.com/entertainment/tv-movies/see-brad-pitt-behind-the-wheel-in-the-trailer-for-f1-224420723.html?src=rss

Ancient Slashdot reader Alain Williams shares a report from the BBC: Meta has won an emergency ruling in the US to temporarily stop a former director of Facebook from promoting or further distributing copies of her memoir. The book, Careless People by Sarah Wynn-Williams, who used to be the company’s global public policy director, includes a series of critical claims about what she witnessed during her seven years working at Facebook.

Facebook’s parent company, Meta, says the ruling — which orders her to stop promotions “to the extent within her control” — affirms that “the false and defamatory book should never have been published.” The UK publisher Macmillan says it is “committed to upholding freedom of speech” and Ms Wynn-Williams’ “right to tell her story.” [You can also hear Ms Wynn-Williams interviewed in the BBC Radio 4 Media Show on March 12.]

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With federal funding imperiled by brutal funding cuts under the Trump administration, biomedical graduate programs nationwide are making tough decisions that will scale back the next generation of scientists.

On Wednesday, news broke that UMass Chan Medical School—a public school in the University of Massachusetts system—has rescinded all offers of admission to biomedical graduate students for the 2025–2026 school year. That means an entire class of future scientists has been wiped out. Those who were initially accepted to the program can try to join again in a future cycle under a priority consideration that won’t require them to reapply, according to a letter sent to a previously admitted student that was shared on social media.

In a statement provided to NBC10 Boston, a spokesperson for the school confirmed that several dozen applicants had their acceptance offers rescinded. “With uncertainties related to the funding of biomedical research in this country, this difficult decision was made to ensure that our current students’ progress is not disrupted by the funding cuts and that we avoid matriculating students who may not have robust opportunities for dissertation research,” the statement reads.

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