When most students get As, grading loses all meaning as a way to encourage exceptional work and recognize excellence. From a report: Grade inflation at American universities is out of control. The statistics speak for themselves. In 1950, the average GPA at Harvard was estimated at 2.6 out of 4. By 2003, it had risen to 3.4. Today, it stands at 3.8. The more elite the college, the more lenient the standards. At Yale, for example, 80% of grades awarded in 2023 were As or A minuses. But the problem is also prevalent at less selective colleges. Across all four-year colleges in the U.S., the most commonly awarded grade is now an A. Some professors and departments, especially in STEM disciplines, have managed to uphold more stringent criteria. A few advanced courses attract such a self-selecting cohort of students that virtually all of them deserve recognition for genuinely excellent work. But for the most part, the grading scheme at many institutions has effectively become useless. An A has stopped being a mark of special academic achievement.

If everyone outside hard-core engineering, math or pre-med courses can easily get an A, the whole system loses meaning. It fails to make distinctions between different levels of achievement or to motivate students to work hard on their academic pursuits. All the while, it allows students to pretend -- to themselves and to others -- that they are performing exceptionally well. Worse, this system creates perverse incentives. To name but one, it actively punishes those who take risks by enrolling in truly challenging courses. All of this contributes to the strikingly poor record of American colleges in actually educating their students. As Richard Arum and Josipa Roksa showed in their 2011 book "Academically Adrift," the time that the average full-time college student spent studying dropped by half in the five decades after 1960, falling to about a dozen hours a week. A clear majority of college students "showed no significant progress on tests of critical thinking, complex reasoning and writing," with about half failing to make any improvements at all in their first two years of higher education.

Long-time Slashdot reader theodp writes: The Contingency Contingent, is Leigh Claire La Berge's amazing tale of what she calls her "fake job in Y2K preparedness." La Berge offers an insider's view of the madness that ensued when Y2K panic gave rise to seemingly-limitless spending at mega-corporations for massive enterprise-wide Y2K remediation projects led by management consulting firms that left clients with little to show for their money. (La Berge was an analyst for consulting firm Arthur Andersen, where "the Andersen position was that 'Y2K is a documentation problem, not a technology problem'.... At a certain point all that had happened yesterday was our documenting, so then we documented that. Then, exponentially, we had to document ourselves documenting our own documentation."). In what reads like the story treatment for an Office Space sequel, La Berge writes that it was a fake job "because Andersen was faking it."
From the article: The firm spent the late 1990s certifying fraudulent financial statements from Enron, the Texas-based energy company that made financial derivatives a household phrase, until that company went bankrupt in a cloud of scandal and suicide and Andersen was convicted of obstruction of justice, surrendered its accounting licenses, and shuttered. But that was later.

Finally, it was a fake job because the problem that the Conglomerate had hired Andersen to solve was not real, at least not in the sense that it needed to be solved or that Andersen could solve it. The problem was known variously as Y2K, or the Year 2000, or the Y2K Bug, and it prophesied that on January 1, 2000, computers the world over would be unable to process the thousandth-digit change from 19 to 20 as 1999 rolled into 2000 and would crash, taking with them whatever technology they were operating, from email to television to air-traffic control to, really, the entire technological infrastructure of global modernity. Hospitals might have emergency power generators to stave off the worst effects (unless the generators, too, succumbed to the Y2K Bug), but not advertising firms.

With a world-ending scenario on the horizon, employment standards were being relaxed. The end of the millennium had produced a tight labor market in knowledge workers, and new kinds of companies, called dot-coms, were angling to dominate the emergent world of e-commerce. Flush with cash, these companies were hoovering up any possessors of knowledge they could find. Friends from my gradeless college whose only experience in business had been parking-lot drug deals were talking stock options.
Looking back, the author remembers being "surprised by how quickly Y2K disappeared from office discourse as though censored..."

Their upcoming book is called Fake Work: How I Began to Suspect Capitalism is a Joke.

A new national survey reveals a concerning trend in school engagement among Gen Z students aged 12-18. The joint Gallup and Walton Family Foundation study [PDF] found that middle and high school students find classes less interesting than last year, with only half feeling positively challenged. Student engagement has dropped significantly since 2023, with 10% fewer respondents saying they learned something interesting at school in the past week.

Non-college-bound students report feeling particularly disconnected, with only 41% saying schoolwork challenges them positively compared to 55% of college-bound peers. Despite only half of students planning to attend four-year colleges, schools heavily emphasize higher education. 68% of high schoolers report hearing "a lot" about college, while only 23% hear as much about vocational alternatives.

An anonymous reader shares a report: Indian IT firm Infosys has been accused of being "exploitative" after allegedly sending job offers to thousands of engineering graduates but still not onboarding any of them after as long as two years. The recent graduates have reportedly been told they must do repeated unpaid training in order to remain eligible to work at Infosys. Last week, the Nascent Information Technology Employees Senate (NITES), an Indian advocacy group for IT workers, sent a letter, shared by The Register, to Mansukh Mandaviya, India's minister of Labor and Employment. It requested that the Indian government intervene "to prevent exploitation of young IT graduates by Infosys."

The letter, signed by NITES president Harpreet Singh Saluja, claimed that NITES received "multiple" complaints from recent engineering graduates "who have been subjected to unprofessional and exploitative practices" from Infosys after being hired for system engineer and digital specialist engineer roles. According to NITES, Infosys sent these people offer letters as early as April 22, 2022, after engaging in a college recruitment effort from 2022â"2023, but never onboarded the graduates. NITES has previously said that "over 2,000 recruits" are affected.

Bruce66423 shares a report from the Los Angeles Times: In a milestone breakthrough, more than half of Caltech's incoming undergraduate class this fall will be women (source paywalled; alternative source) for the first time in its 133-year history. The class of 113 women and 109 men comes 50 years after Caltech graduated its first class of undergraduate women, who were admitted in 1970. "What this means for young women is that we are a place that can be representative of them and their experiences ... where they can grow and thrive and excel and become really impressive, extraordinary scientists and engineers and go on to make a difference in this really research-heavy profession," said Ashley Pallie, dean of admissions

Gloria L. Blackwell, chief executive of the American Assn. of University Women, lauded Caltech's achievement as critical progress in reducing the substantial gap of women in science, technology, engineering and math. Although women hold about 60% of degrees in biological sciences, they represent only about 18% in computer science and 20% in engineering, Blackwell said. Research has shown that boys are not better at math and science than girls, but a persistent message in society says otherwise -- and especially discourages Latinas and Black girls from pursuing the fields because they face discrimination and have less access to role models, resources and opportunities, the AAUW says. The report notes that Caltech isn't the first educational institution to reach gender parity in STEM. Harvey Mudd College, a small private institution in Claremont, "enrolled more women than men in 2010 for the first time in its history and in 2014 graduated more women than men in engineering," reports the LA Times. "Today, women make up 52.8% of majors in computer science, 50.5% in engineering and 68.2% in mathematical and computational biology."

UC Berkeley is another powerful producer of STEM graduates, with "nearly half of students majoring in those fields [identifying] as women or nonbinary." However, the report notes that the field they enter varies significantly. "They make up more than two-thirds of students in biological and biomedical sciences, but about one-third in engineering, computer and informational sciences, and mathematics and statistics."

An anonymous reader quotes a report from NBC News: The former CEO of a small Kansas bank was sentenced to more than 24 years in prison for looting the bank of $47 million -- which he sent to cryptocurrency wallets controlled by scammers who had duped him in a "pig butchering" scheme that appealed to his greed, federal prosecutors said. The massive embezzlement by ex-CEO Shan Hanes in a series of wire transfers over just eight weeks last year led to the collapse and FDIC takeover of Heartland Tri-State Bank in Elkhart, one of only five U.S. banks that failed in 2023. Hanes, 53, also swindled funds from a local church and investment club -- and a daughter's college savings account -- to transfer money, purportedly to buy cryptocurrency as the scammers insisted they needed more funds to unlock the supposed returns on his investments, according to records from U.S. District Court in Wichita, Kansas. But Hanes never realized any profit and lost all of the money he stole as a result of the scam. Judge John Broomes on Monday sentenced Hanes to 293 months in prison -- 29 months more than what prosecutors requested after he pleaded guilty in May to a single count of embezzlement by a bank officer. [...]

[P]rosecutors and bank regulators said that Hanes, who has three daughters with his school teacher wife, began stealing after being targeted in a pig-butchering scheme in late 2022. That scheme was described in a court filing as "a scammer convincing a victim (a pig) to invest in supposedly legitimate virtual currency investment opportunities and then steals the victim's money -- butchering the pig." Hanes, who had served on the board of the American Bankers Association, and been chairman of the Kansas Bankers Association, in December 2022 began making transactions to buy cryptocurrency, which "appeared to be precipitated by communication with an unidentified co-conspirator on the electronic messaging app 'WhatsApp,'" prosecutors wrote in a court filing. "To date, the true identity of the co-conspirator, or conspirators, remain unknown," the filing notes. Hanes initially used personal funds to buy crypto, but in early 2023 he stole $40,000 from Elkhart Church of Christ and $10,000 from the Santa Fe Investment Club, according to prosecutors and a defense filing. He also used $60,000 taken from a daughter's college fund, and nearly $1 million in stock from the Elkhart Financial Corporation, his lawyer said in a filing.

In May 2023, he began to make wire transfers from Heartland Tri-State Bank to accounts controlled by scammers, at first with a $5,000 transfer. Two weeks later, on May 30, Hanes wired $1.5 million and a day after that, he sent another transfer of the same amount the following day, filings show. Three days later he directed two wire transfers totaling $6.7 million to be sent by the bank to the crypto wallet, and a whopping $10 million less than two weeks later, and another $3.3 million days afterward. Hanes told bank employees to execute the wire transfers, and "made many misrepresentations to various people" to get access to the funds so they could be transferred, prosecutors wrote. Heartland Tri-State employees circumvented the bank's own wire policy and daily limits to approve Hanes' wire transfers, according to a report by the Office of the Inspector General of the Board of Governors of the Federal Reserve System.

An anonymous reader quotes a report from Interesting Engineering: A student has successfully developed a small nuclear fusion reactor as part of his A-Levels. The 17-year-old built the reactor to generate neutrons as part of his Extended Project Qualification (EPQ). Notably, Cesare Mencarini's work is claimed to be the only nuclear reactor built in a school environment. Showcased at the Cambridge Science Festival recently, the nuclear reactor achieved plasma a few months ago. It also gave Mencarini an A* in his A-Level results, according to reports. [...] Mencarini maintained that the goal of the reactor is to create conditions that are required for fusion. However, the project couldn't get same pressure that's generated by the Sun due to its own gravity. Therefore, to make atoms hot enough, the teen used high voltage.

The reactor achieved plasma in June. "Two days ago I achieved plasma, which was brilliant and I'm massively happy about this," wrote Mencarini in a LinkedIn post. "The system is running thanks to a Leybold Trivac E2 roughing pump, which allows me to achieve a minimum pressure of 8E-3 Torr." At that time, he mentioned that Pfeiffer TPH062 would be used later to achieve fusion. "This turbomolecular pump is currently isolated by a VAT Throttling Valve." "The grid is then attached to a 30kV rated High Voltage Feedthrough connected to a 5kV Unilab power supply, which allows me to use the fusor in my school (It is limited to a 2mA output). While running the fusor I experimented with 2 grids which you can see in the images," added Mencarini in the post.

America's top colleges and finance-industry recruiters have long had their eye on teenage whiz-kids who compete in a prestigious high-school math contest. Now, allegations of cheating are threatening to disrupt it. WSJ: Online leaks of tests for the country's best-known math contest -- the 74-year-old American Mathematics Competition -- are upsetting students who have spent years preparing for the exams. Ahead of the coming school year and test season, angry parents and math coaches have pushed the contest's administrator to tighten controls. The incident is the latest byproduct of a high-pressure college-admissions race that can lead students to look for any edge to get ahead.

[...] As early as elementary school, students interested in flexing their math knowledge beyond what is taught in school can participate in math clubs and competitions. Each year, more than 300,000 students through high school participate in the AMC's first round of multiple-choice tests. Several thousand top performers are invited to sit for a higher-level test, and from there, around 600 compete in national "math olympiads." The top six math students in the nation then represent the U.S. internationally; the U.S. won its ninth International Mathematical Olympiad title this summer.

Murmurs about cheating in the AMC have circulated for a few years, participants say, but reached critical levels during the past school year. The entirety of exams at each level of the competition were available online hours or days before students sat for the tests, a spokeswoman for the Mathematical Association of America confirmed. Testing sites in the U.S. and abroad receive the questions online early to give proctors time to print them out for the in-person exams.

An anonymous reader quotes a report from the New York Times: Melted capsules. Cloudy insulin. Pills that may no longer work. Doctors and pharmacists say the scorching temperatures enveloping the country could be endangering people's health in an unexpected way: by overheating their medications. Millions of Americans now receive their prescription medications through mail-order shipments, either for convenience or because their health plans require it. But the temperatures inside the cargo areas of delivery trucks can reach 150 degrees Fahrenheit in the summer, according to drivers -- far exceeding the range of 68 to 77 degrees recommended by the national organization that sets standards for drug handling.

Mail-order pharmacies say that their packaging is weather resistant and that they take special precautions when medication "requires specific temperature control." But in a study published last year, independent pharmaceutical researchers who embedded data-logging thermometers inside simulated shipments found that the packages had spent more than two-thirds of their transit time outside the appropriate temperature range, "regardless of the shipping method, carrier, or season." Extreme temperatures can alter the components in many medications, from pancreatic enzymes to the thyroid replacement drug levothyroxine to oral contraceptives, medical experts say.

Dr. Mike Ren, a primary care physician and an assistant professor in the department of family and community medicine at the Baylor College of Medicine, said that liquid medications like insulin or AUVI-Q, the epinephrine injection for allergic reactions, are often at heightened risk of degradation because excessive heat exposure can cause the evaporation of liquid components that were compounded at precise ratios. Aerosolized medications, too, are uniquely vulnerable because of the risk of pressure changes in the canister. "Doctors recommend picking up your prescriptions at a local pharmacy whenever possible during hot summer months, particularly if your medication is liquid or aerosolized," notes the report. "If you are enrolled in an insurance program that requires using a mail-order pharmacy, ask for an exception during the summer or, at the very least, contact the on-call pharmacist at the mail-order company to get more information about shipping practices and to ask for temperature-controlled packaging. You should do this even if the drug does not require refrigeration."

Once you do get your medication, you should make sure to preserve it in a cool, dry environment, away from direct sunlight. If you're flying, your prescriptions should be stored in your carry-on bag. They should never be left in a parked car.

St. Cloud State University announced plans to eliminate its music department and cut 42 degree programs and 50 minors, as part of a broader trend of U.S. colleges slashing offerings amid financial pressures. The Minnesota school's decision, driven by a $32 million budget shortfall over two years, reflects challenges facing higher education institutions nationwide. Similar program cuts have been announced at universities across the country, including in North Carolina, Arkansas, and New York. Some smaller institutions have closed entirely, unable to weather the financial storm, reports CBS News.

Federal COVID relief funds have dried up, operational costs are rising, and fewer high school graduates are pursuing college degrees. St. Cloud State's enrollment plummeted from 18,300 students in fall 2020 to about 10,000 in fall 2023, mirroring national trends. The National Student Clearinghouse Research Center reports a decline in four-year college enrollment, despite a slight rebound in community college numbers.

An anonymous reader shares a report: Once upon a time, you could have yourself a nice little Saturday of stocking up at Costco (using your sister's membership card, naturally), before hitting up a museum (free admission with your 15-year-old expired student ID) or settling into a reality TV binge sesh (streaming on your college roommate's ex-boyfriend's Netflix login). You wouldn't call it stealing, per se. Mooching, perhaps. Exploiting a loophole in a system of commercialized culture you didn't create but are forced to participate in -- and what could be more capitalist than that? But thanks to the fine-tuning of the tech that Corporate America uses to police subscriptions, those freeloading days are over.

Costco and Disney this month took a page from the Netflix playbook and announced they are cracking down on account sharers. So the next time you want to restock your Kirkland chocolate covered almond stash, you'll need to have an honest-to-God membership of your own that you scan at the door. Want to put on "Frozen" for the kids so you can have two hours to do literally anything else? You're going to need a Disney+ login associated with your household. The tech that tracks your IP address and can read your face has gotten more sophisticated, and, as the Wall Street Journal reported last week, retailers and streaming services are increasingly turning to status-verification tech that make it harder for folks to claim student discounts on services like Amazon Prime or Spotify beyond graduation.

Google's loss in an antitrust trial is just the beginning. According to Yahoo Finance's senior legal reporter, Google now also has to defend itself "against another perilous antitrust challenge that could inflict more damage." Starting in September, the tech giant will square off against federal prosecutors and a group of states claiming that Google abused its dominance of search advertising technology that is used to sell, buy, and broker advertising space online... Juggling simultaneous defenses "will definitely create a strain on its resources, productivity, and most importantly, attention at the most senior levels," said David Olson, associate professor at Boston College Law School.... The two cases targeting Google have the potential to inflict major damage to an empire amassed over the last two decades.

The second case that begins next month began with a lawsuit filed in the US District Court for the Eastern District of Virginia by the Justice Department and eight states in December 2020... Prosecutors allege that since at least 2015 Google has thwarted meaningful competition and deterred innovation through its ownership of the entities and software that power the online advertising technology market. Google owns most of the technology to buy, sell, and serve advertisements online... Google's share of the US and global advertising markets — when measured either by revenue or impressions — exceeded 90% for "many years," according to the complaint.

The government prosecutors accused Google of siphoning off $0.35 of each advertising dollar that flowed through its ad tech tools.
Thanks to Slashdot reader ZipNada for sharing the article.

New preliminary evidence for phosphine and ammonia in Venus's atmosphere deepens the mystery of their origins, suggesting the possibility of a biological source. The detections, made using the James Clerk Maxwell Telescope and the Green Bank Telescope, point to potential microbial life in Venus's clouds despite the planet's extreme surface conditions. Space.com reports: The new detections of phosphine and ammonia were obtained by a team led by Jane Greaves of the University of Cardiff using submillimeter radio wavelength data collected by the James Clerk Maxwell Telescope (JCMT) in Hawaii and the Green Bank Telescope in West Virginia. "We don't know how you make phosphine or ammonia in an oxygenating atmosphere like that of Venus," said team member and astrophysicist Dave Clements of Imperial College, London, in an interview with Space.com. Then again, it's not clear why biology on Earth produces phosphine, either." Whether it's in penguin poop or badger guts, we don't know why bacteria make phosphine, but they do."

The JCMT's initial detection of phosphine on Venus in 2020 by Greaves and her team was met by fierce disagreement from some quarters. This disagreement focused on how the data was processed and whether that was creating spurious signals since observations by other telescopes struggled to detect the phosphine. Clements said those technical disagreements have now been resolved and that the latest measurements, using a new detector on the JCMT called Namakanui (meaning 'Big Eyes' in Hawaiian), have come from three observing campaigns, each providing 140 times as much data as the initial detection. [...]

Clements is open to the possibility that both phosphine and ammonia are being produced by some rare photochemistry in Venus' upper atmosphere involving solar ultraviolet breaking up molecules and allowing phosphine and ammonia to form from the molecular debris. If that is the case, nobody has observed this process yet, not even in the laboratory. Another possibility that has been mooted is that the phosphine could be produced by Venusian volcanoes. Clements also pointed out that the European Space Agency's Jupiter Icy Moons Explorer (JUICE) is making a fly-by of Venus in August 2025 to help slingshot it towards the Jovian system. JUICE carries instruments capable of detecting phosphine and ammonia, but there's no guarantee that its instruments will be switched on and deployed at Venus.

An anonymous reader quotes a report from MIT Technology Review: Since the beginning of the generative AI boom, content creators have argued that their work has been scraped into AI models without their consent. But until now, it has been difficult to know whether specific text has actually been used in a training data set. Now they have a new way to prove it: "copyright traps" developed by a team at Imperial College London, pieces of hidden text that allow writers and publishers to subtly mark their work in order to later detect whether it has been used in AI models or not. The idea is similar to traps that have been used by copyright holders throughout history -- strategies like including fake locations on a map or fake words in a dictionary. [...] The code to generate and detect traps is currently available on GitHub, but the team also intends to build a tool that allows people to generate and insert copyright traps themselves. "There is a complete lack of transparency in terms of which content is used to train models, and we think this is preventing finding the right balance [between AI companies and content creators]," says Yves-Alexandre de Montjoye, an associate professor of applied mathematics and computer science at Imperial College London, who led the research.

The traps aren't foolproof and can be removed, but De Montjoye says that increasing the number of traps makes it significantly more challenging and resource-intensive to remove. "Whether they can remove all of them or not is an open question, and that's likely to be a bit of a cat-and-mouse game," he says.

More students are getting high scores on Advanced Placement tests, long seen as a gateway to elite college admissions as well as a way to earn college credit during high school. From a report: Changes by the tests' maker in recent years have shifted scores upward. That has led to hundreds of thousands of additional students getting what's considered a passing score -- 3 or above on the 1-to-5 scale -- on exams in popular courses including AP U.S. History and AP U.S. Government.

The nonprofit behind the tests, College Board, says it updated the scoring by replacing its panel of experts with a large-scale data analysis to better reflect the skills students learn in the courses. Some skeptical teachers, test-prep companies and college administrators see the recent changes as another form of grade inflation, and a way to boost the organization's business by making AP courses seem more attractive.

"It is hard to argue with the premise of AP, that students who are talented and academically accomplished can get a head start on college," said Jon Boeckenstedt, the vice provost of enrollment at Oregon State University. "But I think it's a business move." The number of students cheering their higher AP scores could rise again next year. The College Board said it is still recalibrating several other subjects, including its most popular course, AP English Language, which attracts more than half a million test takers.

Harry R. Lewis has been a Harvard CS professor — teaching both Bill Gates and Mark Zuckerberg — and the dean of Harvard college. Born in 1947, Lewis remembers flipping the 18 toggle switches on Harvard's PDP-4 back in 1966 — up ("click!") or down ("CLACK"). And he thinks there's a lesson for today from a time when "Computers were experienced as physical things."

[T]he machine had a personality because it had a body you could feel and listen to. You could tell whether it was running smoothly by the way it sounded...

Unlike the unreliable mechanical contraptions of yore, today's computers — uninteresting though they may be to look at if you can find them at all — mostly don't break down, so we have fewer reasons to remember their physicality. Does it matter that the line between humans and the machines we have created has so blurred? Of course it does. We have known for a long time that we would eventually lose the calculation game to our creations; it has happened. We are likely to lose Turing's "Imitation Game" too, in which a computer program, communicating with a human via typed text, tries to fool the user into confusing it with a human at another keyboard. (ChatGPT and its ilk are disturbingly convincing conversationalists already.)

Our challenge, in the presence of ubiquitous, invisible, superior intelligent agents, will be to make sure that we, and our heirs and successors, remember what makes us human... All computers can do is pretend to be human. They can be, in the language of the late philosopher Daniel Dennett '63, counterfeit humans... The first error is suggesting that computers can be digitally trained to be superior versions of human intellects. And the second is inferring that human judgment will not be needed once computers get smart enough...

[N]o AI system can be divorced from the judgments of the humans who created it... Only hubristic humans could think that their counterfeits might completely substitute for human companionship, wisdom, curiosity, and judgment.â
Even back in 1966, Lewis says he learned two lessons that "have stood the test of time. Be careful what you ask them for. And it can be hard to tell what they are doing."

One example? "In those pre-miniaturization days, the ordinary operation of the central processor generated so much radiation that you would put a transistor radio on the console and tune it in between AM stations. From the other side of the room, the tone of the static indicated whether the machine had crashed or not."

A drug has been shown to extend the lifespan of laboratory mice by nearly 25%, with treated mice displaying fewer cancers and improved health and strength. It earned them the nickname "supermodel grannies" due to their youthful appearance. "The drug is already being tested in people, but whether it would have the same anti-ageing effect is unknown," reports the BBC. From the report: The team at the MRC Laboratory of Medical Science, Imperial College London and Duke-NUS Medical School in Singapore were investigating a protein called interleukin-11. Levels of it increase in the human body as we get older, it contributes to higher levels of inflammation, and the researchers say it flips several biological switches that control the pace of ageing.

The researchers performed two experiments. The first genetically engineered mice so they were unable to produce interleukin-11. The second waited until mice were 75 weeks old (roughly equivalent to a 55-year-old person) and then regularly gave them a drug to purge interleukin-11 from their bodies. The results, published in the journal Nature, showed lifespans were increased by 20-25% depending on the experiment and sex of the mice.

Old laboratory mice often die from cancer, however, the mice lacking interleukin-11 had far lower levels of the disease. And they showed improved muscle function, were leaner, had healthier fur and scored better on many measures of frailty.

Astronomers say they've detected two gases that could indicate the presence of life forms lurking in the clouds of Venus. The Guardian reports: Findings presented at the national astronomy meeting in Hull on Wednesday bolster evidence for a pungent gas, phosphine, whose presence on Venus has been fiercely disputed. A separate team revealed the tentative detection of ammonia, which on Earth is primarily produced by biological activity and industrial processes, and whose presence on Venus scientists said could not readily be explained by known atmospheric or geological phenomena. "It could be that if Venus went through a warm, wet phase in the past then as runaway global warming took effect [life] would have evolved to survive in the only niche left to it -- the clouds," said Dr Dave Clements, a reader in astrophysics at Imperial College London, told the meeting. "Our findings suggest that when the atmosphere is bathed in sunlight the phosphine is destroyed," Clements said. "All that we can say is that phosphine is there. We don't know what's producing it. It may be chemistry that we don't understand. Or possibly life."

In a second talk, Prof Jane Greaves, an astronomer at Cardiff University, presented preliminary observations from the Green Bank telescope indicating ammonia, which on Earth is made through either industrial processes or by nitrogen-converting bacteria. Greaves said: "Even if we confirmed both of these [findings], it is not evidence that we have found these magic microbes and they're living there today," adding that there were not yet "any ground truths." Dr Robert Massey, the deputy executive director at the Royal Astronomical Society, said in a statement: "These are very exciting findings but it must be stressed that the results are only preliminary and more work is needed to learn more about the presence of these two potential biomarkers in Venus's clouds. Nevertheless, it is fascinating to think that these detections could point to either possible signs of life or some unknown chemical processes. It will be interesting to see what further investigations unearth over the coming months and years."

Major changes are coming to the ACT college admissions exam in the spring, the CEO of ACT announced Monday. From a report: The exam will be evolving to "meet the challenges students and educators face" -- and that will include shortening the core test and making the science section optional, chief executive Janet Godwin said in a post on the non-profit's website. The changes will begin with national online tests in spring 2025 and be rolled out for school-day testing in spring 2026, Godwin said in the post. The decision to alter the ACT follows changes made to the SAT earlier this year by the College Board, the non-profit organization that develops and administers that test. The SAT was shortened by a third and went fully digital.

Science is being removed from the ACT's core sections, leaving English, reading and math as the portions that will result in a college-reportable composite score ranging from 1 to 36, Godwin wrote. The science section, like the ACT's writing section already was, will be optional. "This means students can choose to take the ACT, the ACT plus science, the ACT plus writing, or the ACT plus science and writing," Godwin wrote. "With this flexibility, students can focus on their strengths and showcase their abilities in the best possible way."

The idea that night owls who don't go to bed until the early hours struggle to get anything done during the day may have to be revised. From a report: It turns out that staying up late could be good for our brain power as research suggests that people who identify as night owls could be sharper than those who go to bed early. Researchers led by academics at Imperial College London studied data from the UK Biobank study on more than 26,000 people who had completed intelligence, reasoning, reaction time and memory tests.

They then examined how participants' sleep duration, quality, and chronotype (which determines what time of day we feel most alert and productive) affected brain performance. They found that those who stay up late and those classed as "intermediate" had "superior cognitive function," while morning larks had the lowest scores. Going to bed late is strongly associated with creative types.