Pi was calculated to 100 trillion decimal places in 2022 by a Google team lead by cloud developer advocate Emma Haruka Iwao.

But 2024's "pi day" saw a new announcement... After successfully breaking the speed record for calculating pi to 100 trillion digits last year, the team at StorageReview has taken it up a notch, revealing all the numbers of Pi up to 105 trillion digits! Spoiler: the 105 trillionth digit of Pi is 6!

Owner and Editor-in-Chief Brian Beeler led the team that used 36 Solidigm SSDs (nearly a petabyte) for their unprecedented capacity and reliability required to store the calculated digits of Pi. Although there is no practical application for this many digits, the exercise underscores the astounding capabilities of modern hardware and an achievement in computational and storage technology...

For an undertaking of this size, which took 75 days, the role of storage cannot be understated. "For the Pi computation, we're entirely restricted by storage, says Beeler. "Faster CPUs will help accelerate the math, but the limiting factor to many new world records is the amount of local storage in the box. For this run, we're again leveraging Solidigm D5-P5316 30.72TB SSDs to help us get a little over 1P flash in the system.

"These SSDs are the only reason we could break through the prior records and hit 105 trillion Pi digits."
"Leveraging a combination of open-source and proprietary software, the team at StorageReview optimized the algorithmic process to fully exploit the hardware's capabilities, reducing computational time and enhancing efficiency," Beeler says in the announcement.

There's a video on YouTube where the team discusses their effort.

"A pet company has twice sent back dog breed results for human swab samples," reports the Guardian, "prompting doubts surrounding the accuracy of dog breed tests." On Wednesday, WBZ News reported its investigations team receiving dog breed results from the company DNA My Dog after one of its reporters sent in a swab sample — from her own cheek. According to the results from the Toronto-based company, WBZ News reporter Christina Hager is 40% Alaskan malamute, 35% shar-pei and 25% labrador.

Hager also sent her samples to two other pet genetic testing companies. The Melbourne, Australia- and Florida-based company Orivet reported that the sample "failed to provide the data necessary to perform the breed ID analysis". Meanwhile, Washington-based company Wisdom Panel said that the sample "didn't provide ... enough DNA to produce a reliable result"...

The global dog DNA test market, which was valued at $235m in 2022, is projected to grow to $723m by 2030, according to Zion Market Research. The industry's main players include DNA My Dog, Orivet and Wisdom Panel, among others.

But faulty results have cast doubt on the accuracy of the DNA tests.
Thanks to jd (Slashdot reader #1,658) for sharing the article.

"Engineers have sent a 'poke' to the Voyager 1 probe," reports CNN, "and received a potentially encouraging response..."

"A new signal recently received from the spacecraft suggests that the NASA mission team may be making progress in its quest to understand what Voyager 1 is experiencing..." [T]hey hope to fix a communication issue with the aging spacecraft that has persisted for five months. Launched in 1977, Voyager 1 and its twin, Voyager 2, are venturing through uncharted cosmic territory along the outer reaches of the solar system. While Voyager 1 has continued to relay a steady radio signal to its mission control team on Earth, that signal has not carried any usable data since November, which has pointed to an issue with one of the spacecraft's three onboard computers...

On March 3, the team noticed that activity from one part of the flight data system stood out from the rest of the garbled data. While the signal wasn't in the format the Voyager team is used to when the flight data system is functioning as expected, an engineer with NASA's Deep Space Network was able to decode it... The decoded signal included a readout of the entire flight data system's memory, according to an update NASA shared.

"The (flight data system) memory includes its code, or instructions for what to do, as well as variables, or values used in the code that can change based on commands or the spacecraft's status," according to a NASA blog post. "It also contains science or engineering data for downlink. The team will compare this readout to the one that came down before the issue arose and look for discrepancies in the code and the variables to potentially find the source of the ongoing issue."
"The source of the issue appears to be with one of three onboard computers, the flight data subsystem (FDS), which is responsible for packaging the science and engineering data before it's sent to Earth," according to NASA's statement.

CNN reminds readers that Voyager 1 "is currently the farthest spacecraft from Earth at about 15 billion miles (24 billion kilometers) away." Both Voyager 1 and Voyager 2 are now in interstellar space.

Thanks to Slashdot reader Thelasko for sharing the news.

The Washington Post reports: Nearly a decade ago, Congress passed a law that allows private American space companies the rights to resources they mine on celestial bodies, including the moon.

Now, there's a private venture that says it intends to do just that.

Founded by a pair of former executives from Blue Origin, the space venture founded by Jeff Bezos, and an Apollo astronaut, the company, Interlune, announced itself publicly Wednesday by saying it has raised $18 million and is developing the technology to harvest and bring materials back from the moon... Specifically, Interlune is focused on Helium-3, a stable isotope that is scarce on Earth but plentiful on the moon and could be used as fuel in nuclear fusion reactors as well as helping power the quantum computing industry.

The company, based in Seattle, has been working for about four years on the technology, which comes as the commercial sector is working with NASA on its goal of building an enduring presence on and around the moon... Rob Meyerson, the former president of Blue Origin, co-founded Interlune with Gary Lai, another former executive at Blue, and Harrison Schmitt, a geologist who flew to the moon during Apollo 17... In an interview, Meyerson said that the company intends to be the first to collect, return and then sell lunar resources and test the 2015 law. There is a large demand for Helium-3 in the quantum computing industry, which requires some of its systems to operate in extremely cold temperatures, and Interlune has already lined up a "customer that wants to buy lunar resources in large quantities," he said.

"We intend to be the first to go commercialize and deliver and support those customers," he said. NASA might want to be a customer as well. In 2020, it said it was looking for companies to collect rocks and dirt from the lunar surface and sell them to NASA as part of a technology development program that would eventually help astronauts "live off the land...." The company's funding round was led by the venture capital firm Seven Seven Six, whose founder and general partner, Alexis Ohanian, said that the space sector has become far more appealing to investors. "The space economy is something we can actually talk about with a straight face now, and I think some of the smartest people on the planet are making those efforts," he said...

He said he was aware that it might take years, or longer for a moon mining business to make money. But he said that, "we're comfortable waiting for a decade plus to see those returns."
NASA is planning more missions like the Intuitive Machines landing earlier this year, according to the article, "which it says will not only help pave the way for humans to return to the moon but for private industry to begin commercial operations there as well." Interlune plans "a prospecting machine" as soon as 2026, followed by an "end-to-end demonstration" in 2028 that harvests and returns a small quanity of Helium-3, and then full-scale operations by 2030.

"China has also said that it is interested in extracting other resources, including Helium-3, which it said was present in a sample it returned from the moon in 2020."

With funding from NASA, researchers from Villanova University have obtained a never-before-seen view of the central engine at the heart of our galaxy. Space.com reports: The new map of this central region of the Milky Way, which took four years to assemble, reveals the relationship between magnetic fields at the heart of our galaxy and the cold dust structures that dwell there. This dust forms the building blocks of stars, planets, and, ultimately, life as we know it. The central engine of the Milky Way drives this process. That means a clearer picture of dust and magnetic interactions builds a better understanding of the Milky Way and our place within it. The team's findings also have implications beyond our galaxy, offering glimpses of how dust and magnetic fields interact in the central engines of other galaxies.

"The center of the Milky Way and most of the space between stars is filled with a lot of dust, and this is important for our galaxy's life cycle," David Chuss, research team leader and a physics professor at Villanova University, told Space.com. "What we looked at was light emitted from these cool dust grains produced by heavy elements forged in stars and dispersed when those stars die and explode." [...] Chuss and colleagues received funding from NASA to investigate this dusty central zone using the Stratospheric Observatory for Infrared Astronomy (SOFIA), which was a telescope that circled the globe at an altitude of 45,000 feet (13,716 meters) aboard a Boeing 747 plane. The project's Far-Infrared Polarimetric Large Area CMZ Exploration (FIREPLACE) created an infrared map that spans around 500 light-years across the center of the Milky Way over nine flights. Using measurements of the polarization of the radiation emitted from dust that is aligned with magnetic fields, the intricate structure of those magnetic fields themselves was inferred by the team. This was then overlaid onto a three-color map that shows warm dust with a pink hue and cool dust clouds in blue. The image also shows radio-wave-emitting filaments in yellow.

"This is a journey, not a destination, but what we've found is this is a very complicated thing. The directions of the magnetic field vary all across the clouds at the center of the Milky Way," Chuss explained. "This is the first step in trying to figure out how the field that we see in the radiowaves across these large organized filaments may relate to the rest of the dynamics of the center of the Milky Way." Chuss explained that this complicated picture of magnetic fields was something that he and the FIREPLACE team had expected to see with the new SOFIA map; the observations agreed with smaller-scale infrared and radio wave observations previously made of the heart of the Milky Way. Where this new map, however, really comes into its own is the sheer scale. It manages to reveal some never-before mapped regions. The fine detail woven into it is stunning as well. A preprint version of the SOFIA data is available on arXiv.

Scientists have discovered a giant volcano on Mars, as well as a possible sheet of buried glacier ice near the planet's equator. Phys.Org reports: Imaged repeatedly by orbiting spacecraft around Mars since Mariner 9 in 1971 -- but deeply eroded beyond easy recognition, the giant volcano had been hiding in plain sight for decades in one of Mars' most iconic regions, at the boundary between the heavily fractured maze-like Noctis Labyrinthus (Labyrinth of the Night) and the monumental canyons of Valles Marineris (Valleys of Mariner). Provisionally designated "Noctis volcano" pending an official name, the structure is centered at 7 degrees 35' S, 93 degrees 55' W. It reaches +9022 meters (29,600 feet) in elevation and spans 450 kilometers (280 miles) in width. The volcano's gigantic size and complex modification history indicate that it has been active for a very long time. In its southeastern part lies a thin, recent volcanic deposit beneath which glacier ice is likely still present. This combined giant volcano and possible glacier ice discovery is significant, as it points to an exciting new location to study Mars' geologic evolution through time, search for life, and explore with robots and humans in the future. The announcement was made at the 55th Lunar and Planetary Science Conference in The Woodlands, Texas. You can read more about it here (PDF).

Sheraz Sadiq reports via Oregon Public Broadcasting: An area that's nearly half the size of New Jersey in southern Oregon was recently named the world's largest dark sky sanctuary by DarkSky International. The nonprofit works to combat light pollution through advocacy and conservation, including a program that has certified more than 200 places around the world to protect the night sky. The Oregon Outback International Dark Sky Sanctuary spans 2.5 million acres of mostly public land in eastern Lake County, and could eventually grow to more than four times that size to include parts of Harney and Malheur Counties. To win certification as a Dark Sky Sanctuary, the applicants had to work with numerous stakeholders to draw the site's boundaries, monitor night sky quality, inventory outdoor lights and replace more than 60 lights on public and private lands. With the inclusion of parts of Harney and Malheur Counties, the sanctuary would surpass 11 million acres, notes KLCC. More than half of the area is under the control of the U.S. Bureau of Land Management.

sixoh1 writes: On the third attempt, SpaceX's Super Heavy booster lofted the Starship vehicle to space on a sub-orbital parabolic trajectory. The test was successful for nearly all of the objectives, including payload delivery functions on Starship that will be used for Starlink deployment and in-space fuel transfers. Unfortunately the booster did not soft-land, and the Starship vehicle was destroyed during re-entry, likely due to unspecified issues with re-starting the Raptor engine and then maintaining attitude control during re-entry. You can watch Starship's third flight test here.

An anonymous reader quotes a report from the BBC: The polio survivor known as "the man in the iron lung" has died at the age of 78. Paul Alexander contracted polio in 1952 when he was six, leaving him paralyzed from the neck down. The disease left him unable to breathe independently, leading doctors to place him in the metal cylinder, where he would spend the rest of his life. He would go on to earn a law degree -- and practice law -- as well as publish a memoir. [...] In 1952, when he became ill, doctors in his hometown of Dallas operated on him, saving his life. But polio meant his body was no longer able to breathe on his own. The answer was to place him in a so-called iron lung — a metal cylinder enclosing his body up to his neck.

The lung, which he called his "old iron horse," allowed him to breathe. Bellows sucked air out of the cylinder, forcing his lungs to expand and take in air. When the air was let back in, the same process in reverse made his lungs deflate. After years, Alexander eventually learned to breathe by himself so that he was able to leave the lung for short periods of time. Like most polio survivors placed in iron lungs, he was not expected to survive long. But he lived for decades, long after the invention of the polio vaccine in the 1950s all but eradicated the disease in the Western world. [...] Advances in medicine made iron lungs obsolete by the 1960s, replaced by ventilators. But Alexander kept living in the cylinder because, he said, he was used to it. He was recognized by Guinness World Records as the person who lived the longest in an iron lung.

The FAA today awarded a launch license to SpaceX for Starship's third-ever test flight on March 14. "The FAA determined SpaceX met all safety, environmental, policy and financial responsibility requirements," the agency wrote in a post on X this afternoon. Space.com reports: The megarocket has two test flights under its belt so far, which took place in April and November of last year. Starship's two stages failed to separate as planned on the April flight, however, which ended after just four minutes. Things went better in November -- stage separation occurred as planned, for example -- but both stages ended up exploding high in the sky on that mission as well. The FAA wrapped up its investigation into what happened on the November flight late last month. But the agency took some additional time before awarding a license for launch number three today.

Thursday's flight will be different, and bolder, than its predecessors. "The third flight test aims to build on what we've learned from previous flights while attempting a number of ambitious objectives, including the successful ascent burn of both stages, opening and closing Starship's payload door, a propellant transfer demonstration during the upper stage's coast phase, the first ever re-light of a Raptor engine while in space, and a controlled reentry of Starship," SpaceX wrote in a mission description. In addition, Thursday's test launch will aim to bring Starship's upper stage down in the Indian Ocean. The target splashdown zone for the first two test missions, by contrast, was the Pacific Ocean near Hawaii.

Rates of more than a dozen cancers are increasing among adults under 50 worldwide, with the number of early-onset cancer cases predicted to rise by around 30% between 2019 and 2030. Investigators are searching for explanations, considering factors such as obesity, early-cancer screening, gut microbiome, and tumor genomes. Despite increased screening and awareness, mortality from early-onset cancers has risen by nearly 28% between 1990 and 2019 globally.

12P/Pons-Brooks, a Halley-type comet larger than Mount Everest and with a 71.3-year orbit, is expected to become visible to the naked eye in the coming weeks as it makes its closest approach to the sun on April 21. The Guardian reports: While some reports suggest 12P/Pons-Brooks was spotted as far back as the 14th century, it is named after the French astronomer Jean-Louis Pons who discovered it in 1812 and the British-American astronomer William Robert Brooks who observed it on its next orbit in 1883. Thought to have a nucleus about 30km (20 miles) in diameter, it is classed as a cryovolcanic comet, meaning it erupts with dust, gases and ice when pressure builds inside as it is heated. One such outburst last year caused it to brighten a hundredfold and garnered it the sobriquet of "the Devil Comet" after the haze that surrounds it formed a horned shape.

While the comet -- and its green tinge -- has already been spotted in the night sky, experts say it is expected to become even brighter in the coming weeks. "The comet is expected to reach a magnitude of 4.5 which means it ought to be visible from a dark location in the UK," said Dr Paul Strom, an astrophysicist at the University of Warwick. "The comet moves from the constellation of Andromeda to Pisces. As it does so it passes by bright stars which will make it easier to spot on certain dates. In particular, on March 31 12P/Pons-Brooks will be only 0.5 a degree from the bright star called Hamal," he said. But Dr Robert Massey, the deputy executive director of the Royal Astronomical Society, said even if the comet did become brighter it could still be difficult to see, adding that basic instruments such as small telescopes would greatly help.

"If you have a half-decent pair of binoculars, certainly attempt to look for it with those," said Massey, adding that apps that map the sky were also useful. The best views of the comet are currently to be found in the northern hemisphere. Massey said those who wanted to catch a glimpse should venture out on a clear evening and look low in the west-north-west as twilight came to an end. "You want to avoid haze, you want to avoid moonlight, you want to avoid light pollution."

An anonymous reader quotes a report from Inside Climate News: Months in jail and thousands of dollars in fines and legal fees -- those are the consequences Alabamians and Arizonans could soon face for selling cell-cultured meat products that could cut into the profits of ranchers, farmers and meatpackers in each state. State legislators from Florida to Arizona are seeking to ban meat grown from animal cells in labs, citing a "war on our ranching" and a need to protect the agriculture industry from efforts to reduce the consumption of animal protein, thereby reducing the high volume of climate-warming methane emissions the sector emits. Agriculture accounts for about 11 percent of the country's greenhouse gas emissions, according to federal data, with livestock such as cattle making up a quarter of those emissions, predominantly from their burps, which release methane -- a potent greenhouse gas that's roughly 80 times more effective at warming the atmosphere than carbon dioxide over 20 years. Globally, agriculture accounts for about 37 percent of methane emissions.

For years, climate activists have been calling for more scrutiny and regulation of emissions from the agricultural sector and for nations to reduce their consumption of meat and dairy products due to their climate impacts. Last year, over 150 countries pledged to voluntarily cut emissions from food and agriculture at the United Nations' annual climate summit. But the industry has avoided increased regulation and pushed back against efforts to decrease the consumption of meat, with help from local and state governments across the U.S.

Bills in Alabama, Arizona, Florida and Tennessee are just the latest legislation passed in statehouses across the U.S. that have targeted cell-cultured meat, which is produced by taking a sample of an animal's muscle cells and growing them into edible products in a lab. Sixteen states -- Alabama, Arkansas, Georgia, Kansas, Kentucky, Louisiana, Maine, Mississippi, Missouri, Montana, North Dakota, Oklahoma, South Carolina, South Dakota, Texas and Wyoming -- have passed laws addressing the use of the word "meat" in such products' packaging, according to the National Agricultural Law Center at the University of Arkansas, with some prohibiting cell-cultured, plant-based or insect-based food products from being labeled as meat.

Jennifer Ouellette reports via Ars Technica: Astronomers have made new measurements of the Hubble Constant, a measure of how quickly the Universe is expanding, by combining data from the Hubble Space Telescope and the James Webb Space Telescope. Their results confirmed the accuracy of Hubble's earlier measurement of the constant's value, according to their recent paper published in The Astrophysical Journal Letters, with implications for a long-standing discrepancy in values obtained by different observational methods known as the "Hubble tension."

There was a time when scientists believed the Universe was static, but that changed with Albert Einstein's general theory of relativity. Alexander Friedmann published a set of equations showing that the Universe might actually be expanding in 1922, with Georges Lemaitre later making an independent derivation to arrive at that same conclusion. Edwin Hubble confirmed this expansion with observational data in 1929. Prior to this, Einstein had been trying to modify general relativity by adding a cosmological constant in order to get a static universe from his theory; after Hubble's discovery, legend has it, he referred to that effort as his biggest blunder. The article notes how scientists have employed different methods to calculate the Hubble Constant, including observing nearby celestial objects, analyzing gravitational waves from cosmic events, and examining the Cosmic Microwave Background (CMB). However, these approaches yield differing values, highlighting the challenge in pinning down the constant precisely. A recent effort involved making additional observations of Cepheid variable stars, correlating them with the Hubble data. The results further confirmed the accuracy of the Hubble data.

"We've now spanned the whole range of what Hubble observed, and we can rule out a measurement error as the cause of the Hubble Tension with very high confidence," said co-author and team leader Adam Riess, a physicist at Johns Hopkins University. "Combining Webb and Hubble gives us the best of both worlds. We find that the Hubble measurements remain reliable as we climb farther along the cosmic distance ladder. With measurement errors negated, what remains is the real and exciting possibility that we have misunderstood the Universe."

The openVertebrate (oVert) project is now complete, offering free online access to incredibly detailed 3D images of over 13,000 vertebrates. New Atlas reports: More than a research project, oVert was a collaboration between like-minded specialists across 25 institutions whose sole objective was to add value to museum collections by making them more widely available. Importantly, these images provide an insight that would only otherwise be obtained by destructive dissection and tissue sampling. Over the course of six years, project members took CT scans of more than half the classes, or genera, of all amphibians, reptiles, fishes, birds, and mammals, rendering models that provide an intimate look at the creatures, inside and out. [...]

For a working example of the incredible detail and information contained in oVert's images, head to Sketchfab to view a sample of interactive 3D models like the olive sea snake. Or go to MorphoSource to access the full oVert repository. [...] If you have 30 minutes to spare, check out the full video produced by the Florida Museum, which showcases a collection of diverse oVert specimens. A study presenting a summary of the oVert project was published in the journal BioScience.

Surgeons in the United Kingdom have performed the first operation in the country using Apple's Vision Pro headset. TechSpot reports: During a recent operation to repair a patient's spine at the private Cromwell Hospital in London, a scrub nurse working alongside the surgeon used the Vision Pro to help prepare, keep track of the procedure, and choose the right tools, reports the Daily Mail. This marked the first operation in the UK where the Vision Pro was used. The software running on Apple's headset during the operation comes from US company eXeX, which has made similar programs for Microsoft's HoloLens. It offers nurses and technicians both holographic and touch-free access to the surgical setup and the procedural guides from within the sterile field of the operating room, according to the press release. The software also tracks each stage of an operation and can measure how well the op went compared to previous procedures performed by other surgeons.

"It eliminates human error and eliminates the guesswork," said Suvi Verho, lead scrub nurse at London Independent Hospital. "It gives you confidence in surgery." While this marked the first time that the Vision Pro was used during a UK surgery, the first-ever time the device was used in an operating room was last month, just three days after its release, when Orlando resident and world-renowned Neurosurgeon Dr. Robert Masson wore it during several spine reconstruction surgeries. "We are in a new era of surgery, and for the first time, our surgical teams have the brilliance of visual holographic guidance and maps, improving visuospatial and temporal orientation for each surgical team and for each surgery in all specialties," said Masson.

CNN's national security analyst interviewed a U.S. intelligence officer who worked on the newly-released Defense report debunking UFO sightings — physicist Sean Kirkpatrick. He tells CNN "about two to five percent" of UFO reports are "truly anomalous."

But CNN adds that "he thinks explanations for that small percentage will most likely be found right here on Earth..." This is how Kirkpatrick and his team explain the Roswell incident, which plays a prominent role in UFO lore. That's because, in 1947, a U.S. military news release stated that a flying saucer had crashed near Roswell Army Air Field in New Mexico. A day later, the Army retracted the story and said the crashed object was a weather balloon. Newspapers ran the initial saucer headline, followed up with the official debunking, and interest in the case largely died down. Until 1980, that is, when a pair of UFO researchers published a book alleging that alien bodies had been recovered from the Roswell wreckage and that the U.S. government had covered up the evidence.

Kirkpatrick says his office dug deep into the Roswell incident and found that in the late 1940s and early 1950s, there were a lot of things happening near the Roswell Airfield. There was a spy program called Project Mogul, which launched long strings of oddly shaped metallic balloons. They were designed to monitor Soviet nuclear tests and were highly secret. At the same time, the U.S. military was conducting tests with other high-altitude balloons that carried human test dummies rigged with sensors and zipped into body-sized bags for protection against the elements. And there was at least one military plane crash nearby with 11 fatalities.

Echoing earlier government investigations, Kirkpatrick and his team concluded that the crashed Mogul balloons, the recovery operations to retrieve downed test dummies and glimpses of the charred aftermath of that real plane crash likely combined into a single false narrative about a crashed alien spacecraft...

Since 2020, the Pentagon has standardized, de-stigmatized and increased the volume of reporting on UFOs by the U.S. military. Kirkpatrick says that's the reason the closely covered and widely-mocked Chinese spy balloon was spotted in the first place last year. The incident shows that the U.S. government's policy of taking UFOs seriously is actually working.
The pattern keeps repeating. "Kirkpatrick says, his investigation found that most UFO sightings are of advanced technology that the U.S. government needs to keep secret, of aircraft that rival nations are using to spy on the U.S. or of benign civilian drones and balloons." ("What's more likely?" asked Kirkpatrick. "The fact that there is a state-of-the-art technology that's being commercialized down in Florida that you didn't know about, or we have extraterrestrials?")

But the greatest irony may be that "stories about these secret programs spread inside the Pentagon, got embellished and received the occasional boost from service members who'd heard rumors about or caught glimpses of seemingly sci-fi technology or aircraft. And Kirkpatrick says his investigators ultimately traced this game of top-secret telephone back to fewer than a dozen people... [F]or decades, UFO true believers have been telling us there's a U.S. government conspiracy to hide evidence of aliens. But — if you believe Kirkpatrick — the more mundane truth is that these stories are being pumped up by a group of UFO true believers in and around government."

Science magazine "has confirmed that a panel of two dozen geologists has voted down a proposal to end the Holocene — our current span of geologic time, which began 11,700 years ago at the end of the last ice age — and inaugurate a new epoch, the Anthropocene.

"Starting in the 1950s, it would have marked a time when humanity's influence on the planet became overwhelming." The vote, first reported by The New York Times, is a stunning — though not unexpected — rebuke for the proposal, which has been working its way through a formal approval process for more than a decade... [S]ome felt the proposed marker of the epoch — some 10 centimeters of mud from Canada's Crawford Lake that captures the global surge in fossil fuel burning, fertilizer use, and atomic bomb fallout that began in the 1950s — isn't definitive enough. Others questioned whether it's even possible to affix one date to the start of humanity's broad planetary influence: Why not the rise of agriculture? Why not the vast changes that followed European encroachment on the New World?
Stanley Finney, a stratigrapher at California State University Long Beach and head of the International Union of Geological Sciences, said "It would have been rejected 10 years earlier if they had not avoided presenting it to the stratigraphic community for careful consideration." Finney also complains that from the start, AWG was determined to secure an "epoch" categorization, and ignored or countered proposals for a less formal Anthropocene designation.... The Anthropocene backers will now have to wait for a decade before their proposal can be considered again...

Even if it is not formally recognized by geologists, the Anthropocene is here to stay. It is used in art exhibits, journal titles, and endless books... And others have advanced the view that it can remain an informal geologic term, calling it the "Anthropocene event...."
From the New York Times: Geoscientists don't deny our era stands out within that long history. Radionuclides from nuclear tests. Plastics and industrial ash. Concrete and metal pollutants. Rapid greenhouse warming. Sharply increased species extinctions. These and other products of modern civilization are leaving unmistakable remnants in the mineral record, particularly since the mid-20th century. Still, to qualify for its own entry on the geologic time scale, the Anthropocene would have to be defined in a very particular way, one that would meet the needs of geologists and not necessarily those of the anthropologists, artists and others who are already using the term.

That's why several experts who have voiced skepticism about enshrining the Anthropocene emphasized that the vote against it shouldn't be read as a referendum among scientists on the broad state of the Earth. "This was a narrow, technical matter for geologists, for the most part," said one of those skeptics, Erle C. Ellis, an environmental scientist at the University of Maryland, Baltimore County. "This has nothing to do with the evidence that people are changing the planet," Dr. Ellis said. "The evidence just keeps growing."

Francine M.G. McCarthy, a micropaleontologist at Brock University in St. Catharines, Ontario, is the opposite of a skeptic: She helped lead some of the research to support ratifying the new epoch. "We are in the Anthropocene, irrespective of a line on the time scale," Dr. McCarthy said. "And behaving accordingly is our only path forward."
Thanks to Slashdot reader sciencehabit for sharing the news.

An anonymous reader shared this article from the Washington Post: A much-debated theory holds that 4 billion years ago, give or take, long before the appearance of dinosaurs or even bacteria, the primordial soup contained only the possibility of life. Then a molecule called RNA took a dramatic step into the future: It made a copy of itself. Then the copy made a copy, and over the course of many millions of years, RNA begot DNA and proteins, all of which came together to form a cell, the smallest unit of life able to survive on its own.

Now, in an important advance supporting this RNA World theory, scientists at the Salk Institute for Biological Studies in La Jolla, Calif., have carried out a small but essential part of the story. In test tubes, they developed an RNA molecule that was able to make accurate copies of a different type of RNA. The work, published in the journal Proceedings of the National Academy of Sciences, gets them closer to the grand goal of growing an RNA molecule that makes accurate copies of itself.

"Then it would be alive," said Gerald Joyce, president of Salk and one of the authors of the new paper. "So, this is the road to how life can arise in a laboratory or, in principle, anywhere in the universe...."

John Chaput, a professor of pharmaceutical sciences at the University of California at Irvine who did not participate in the study, called the crossing of that threshold by the Salk team "monumental," adding that "at first, I looked on it as a little bit jaw-dropping. ... It's super-neat."
The Post adds that "the scenario they tested probably mimics one of the earliest stirrings of evolution." And Michael Kay, a professor of biochemistry at University of Utah, says the new paper has given the RNA World theory "key evidence" to show "it is plausible and reasonable." He added that the RNA copier developed at Salk will "provide a valuable tool for people wanting to do directed evolution experiments."

An anonymous Slashdot reader shared this article from Live Science: Manufacturers will no longer use harmful "forever chemicals" in food packaging products in the U.S., according to the U.S. Food and Drug Administration (FDA).

In a statement released February 28, the agency declared that grease-proofing materials that contain per- and polyfluoroalkyl substances (PFAS) will not be used in new food packaging sold in the U.S. These include PFAS used in fast-food wrappers, microwave popcorn bags, takeout boxes and pet food bags. The FDA's announcement marks the completion of a voluntary phase-out of the materials by U.S. food packaging manufacturers.

This action will eliminate the "major source of dietary exposure to PFAS," Jim Jones, deputy commissioner for human foods at the FDA, said in an associated statement. Companies told the FDA that it could take up to 18 months to completely exhaust the market supply of these products following their final date of sale. However, most of the affected manufacturers phased out the products faster than they initially predicted, the agency noted...

The FDA's new announcement marks a "huge win for the public," Graham Peaslee, a professor of physics at the University of Notre Dame who studies PFAS, told The Washington Post.