A new study shows that common baker's yeast (Saccharomyces cerevisiae) can survive Mars-like conditions, including meteorite shock waves and toxic perchlorate salts found in Martian soil. Phys.org reports: Published in PNAS Nexus, Purusharth I. Rajyaguru and colleagues subjected Saccharomyces cerevisiae, which is a widely used model yeast, to shock waves and perchlorates. The authors chose the yeast in part because it has already been studied in space. When stressed, yeast, humans, and many other organisms form ribonucleoprotein (RNP) condensates, structures made of RNA and proteins that protect RNA and affect the fates of mRNAs. When the stressor passes, the RNP condensates, which include subtypes known as stress granules and P-bodies, disassemble.

The authors simulated Martian shock waves at the High-Intensity Shock Tube for Astrochemistry (HISTA) housed in the Physical Research Laboratory in Ahmedabad, India. Yeast exposed to 5.6 Mach intensity shock waves survived with slowed growth, as did yeast subjected to 100 mM sodium salt of perchlorate (NaClO4) -- a concentration similar to that in Martian soils. Yeast cells also survived exposure to the combined stress of shock waves and perchlorate stress. In both cases, the yeast assembled RNP condensates. Shock waves induced the assembly of stress granules and P-bodies; perchlorate caused yeast to make P-bodies but not stress granules. Mutants incapable of assembling RNP condensates were poor at surviving the Martian stress condition. Transcriptome analysis identified specific RNA transcripts perturbed by Mars-like conditions.

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The Free Software Foundation (FSF) has launched the LibrePhone Project, an initiative to create a fully free and open-source mobile operating system that eliminates proprietary firmware and binary blobs. From the FSF: "Librephone is a new initiative by the FSF with the goal of bringing full freedom to the mobile computing environment. The vast majority of software users around the world use a mobile phone as their primary computing device. After forty years of advocacy for computing freedom, the FSF will now work to bring the right to study, change, share, and modify the programs users depend on in their daily lives to mobile phones.
...
Practically, Librephone aims to close the last gaps between existing distributions of the Android operating system and software freedom. The FSF has hired experienced developer Rob Savoye (DejaGNU, Gnash, OpenStreetMap, and more) to lead the technical project. He is currently investigating the state of device firmware and binary blobs in other mobile phone freedom projects, prioritizing the free software work done by the not entirely free software mobile phone operating system LineageOS." The project site can be found here.

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Several leading news organizations with access to Pentagon briefings have formally said they will not agree to a new defense department policy that requires them to pledge they will not obtain unauthorized material and restricts access to certain areas unless accompanied by an official. The Guardian: The policy, presented last month by the defense secretary, Pete Hegseth, has been widely criticized by media organizations asked to sign the pledge by Tuesday at 5pm or have 24 hours to turn in their press credentials.

The move follows a shake-up in February in which long-credentialed media outlets were required to vacate assigned workspaces which was cast as an "annual media rotation program." A similar plan was presented at the White House where some briefing room spots were given to podcasters and other representatives of non-traditional media.

On Monday, the Washington Post joined the New York Times, CNN, the Atlantic, the Guardian, Reuters, the Associated Press, NPR, HuffPost and trade publication Breaking Defense in saying it would not sign on to the agreement.

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Apple unveiled a new 14-inch MacBook Pro on Wednesday that features the company's M5 chip and represents what Apple describes as the next major advancement in AI performance for its Mac lineup. The laptop delivers up to 3.5 times faster AI performance than the M4 chip and up to six times faster performance than the M1 chip through a redesigned 10-core GPU architecture that incorporates a Neural Accelerator in each core.

The improvements extend beyond AI processing to include graphics performance that runs up to 1.6 times faster than the previous generation and battery life that reaches up to 24 hours on a single charge. Apple also integrated faster storage technology that performs up to twice as fast as the prior generation and allows configurations up to 4TB. The 10-core CPU delivers up to 20% faster multithreaded performance compared to the M4.

The laptop runs macOS Tahoe and includes a Liquid Retina XDR display available in a nano-texture option, a 12MP Center Stage camera, and a six-speaker sound system. The 14-inch MacBook Pro is available for pre-order starting Wednesday in space black and silver finishes and begins shipping October 22. The base model costs $1,599.

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Apple will increase investment in China, the company's CEO Tim Cook said during a meeting with the country's industry minister in Beijing on Wednesday, according to an official summary of their exchange. From a report: Many U.S. companies have become cautious about relations with China as the world's two biggest economies have clashed over trade tariffs and as U.S. President Donald Trump seeks to promote manufacture in the United States rather than elsewhere.

But Cook told China's industry minister Li Lecheng the iPhone maker will keep investing in China, the Chinese ministry said, although the summary gave no details of the size of the projected investment.

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The Japanese government has made a formal request asking OpenAI to refrain from copyright infringement. The request came after Sora 2 began generating videos featuring copyrighted characters from anime and video games. Minoru Kiuchi spoke at the Cabinet Office press conference on Friday and described manga and anime as "irreplaceable treasures" that Japan boasts to the world.

The request was made online by the Cabinet Office's Intellectual Property Strategy Headquarters. Sora 2, which launched recently, generates twenty-second videos at 1080p resolution. Social media is getting filled with videos showing characters from One Piece, Demon Slayer, Pokemon and Mario. Digital Minister Masaaki Taira expressed hopes that OpenAI would comply voluntarily. He indicated that measures under Japan's AI Promotion Act may be invoked if the issue remains unresolved.

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An anonymous reader shares a report: On Wednesday, Pew Research Center published a survey assessing how parents in the US with children under 12 manage their kids' screen time, which revealed that 61% of respondents overall reported their child ever uses or interacts with smartphones -- including 38% of those with children under 2 years old.

Much of this smartphone screen time is likely made up by parents streaming kid-friendly cartoons for their little ones to watch on the go: the study also found that YouTube use among children under 2 has risen sharply from 45% to 62% over the last five years. But it appears that most American toddlers only need to wait a few years before they can get devices of their very own. The same survey showed that almost one in four US parents overall allow their children aged 12 and under to have their own smartphones, and this ballooned to nearly 60% when just looking at kids aged 11-12 years old.

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Apple is releasing its new 14-inch MacBook Pro with the M5 chip in European markets without a charger. Customers in the U.S., Ireland, Germany, Italy, France, Spain, the Netherlands, Norway, and other European countries must supply their own power adapter. Buyers in the U.S. and other regions will receive Apple's 70-watt USB-C adapter. Apple attributed the decision to environmental goals as the European Union implements regulations on electronic waste. A USB-C to MagSafe 3 cable remains included. The adapter costs 59 pounds in the United Kingdom.

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Math teachers across American schools are contending with a classroom disruption that has proven impossible to contain. The numbers six and seven now trigger instant pandemonium among students. They scream the phrase and perform a palms-up seesaw hand gesture whenever the numbers appear in equations or instructions.

Teachers have begun avoiding breaking students into groups of six or seven or asking them to turn to page 67. The meme has no meaning, reports WSJ. That absence of meaning is the point. The phenomenon traces back to late last year when Philadelphia rapper Skrilla released "Doot Doot (6 7)," a song referencing 67th street where his friends grew up. The phrase spiraled into youth culture in March through a viral video of a boy with forward-swept hair lurching toward a camera to deliver an animated "six seven." Skrilla is now touring venues where audiences wait for the six-seven line. Some teachers have attempted to neutralize the meme by saying it themselves.

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Almost 70% of adults in the US would be deemed to have obesity based on a new definition, research suggests. From a report: The traditional definition of obesity, typically based on having a body mass index (BMI) of 30 or greater, has long been contentious, not least as it does not differentiate between fat and muscle.

In an effort to tackle the issue, in January medical experts from around the world called for a new definition to be adopted. This would encompass people either with a BMI greater than 40; or those with a high BMI and at least one raised figure for measures such as waist circumference, waist-to-hip ratio, or waist-to-height ratio; or those with two such raised figures regardless of BMI; or those with direct measures of excess body fat based on scans.

In addition, they said obesity should be split into two categories: clinical obesity -- where there are signs of illness -- and pre-clinical obesity, where there are not. Now research suggests the revamped definition could result in a dramatic rise in the prevalence of obesity among adults in the US.

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The UK should be prepared to cope with weather extremes as a result of at least 2C of global warming by 2050, independent climate advisers have said. BBC: The country was "not yet adapted" to worsening weather extremes already occurring at current levels of warming, "let alone" what was expected to come, the Climate Change Committee (CCC) wrote in a letter addressed to the government.

The committee said they would advise that the UK prepare for climate change beyond the long-term temperature goal set out in the Paris Agreement. The letter came as the World Meteorological Organization (WMO) confirmed that 2024 had seen a record rise of carbon dioxide (CO2) in the atmosphere. CO2 is the gas mainly responsible for human-caused climate change and is released when fossil fuels are burnt, as well as other activities.

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The U.S. passport has fallen out of the top 10 most powerful passports globally for the first time in 20 years in the latest edition of the Henley Passport Index, which ranks nations based on the number of destinations a traveler can visit without needing a visa. From a report: The U.S. ranking is on a steep downward trend, with the U.S. passport now in 12th spot, tied with Malaysia, having already fallen from seventh place last year to 10th place in July. A decade ago, the U.S. passport topped the index.

Christian H. Kaelin, chairman of Henley & Partners and creator of the index, said in a news release on Tuesday that the declining strength of the U.S. passport signaled a "fundamental shift in global mobility and soft power dynamics." Kaelin added: "Nations that embrace openness and cooperation are surging ahead, while those resting on past privilege are being left behind."

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