According to NASA, the OSIRIS-REx mission has successfully collected 121.6 grams, or almost 4.3 ounces, of rock and dust from the asteroid Bennu. Universe Today reports: These samples have been a long time coming. The OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer) was approved by NASA back in 2011 and launched in September 2016. It reached its target, the carbonaceous Apollo group asteroid 101955 Bennu, in December 2018. After spending months studying the asteroid and reconnoitring for a suitable sampling location, it selected one in December 2019. After two sampling rehearsals, the spacecraft gathered its sample on October 20th, 2020. In September 2023, the sample finally returned to Earth.

For OSIRIS-REx to be successful, it had to collect at least 60 grams of material. With a final total that is double that, it should open up more research opportunities and allow more of the material to be held untouched for future research. NASA says they will preserve 70% of the sample for the future, including for future generations. The next step is for the material to be put into containers and sent to researchers. More than 200 researchers around the world will receive samples. Many of the samples will find their way to scientists at NASA and institutions in the US, while others will go to researchers at institutions associated with the Canadian Space Agency, JAXA, and other partner nations. Canada will receive 4% of the sample, the first time that Canada's scientific community will have direct access to a returned asteroid sample.

Texas-based Intuitive Machines' inaugural moon mission began early Thursday morning, heading toward what could be the first U.S. lunar landing in more than 50 years. From a report: Intuitive Machines' Nova-C lander launched from Florida on SpaceX's Falcon 9 rocket, beginning the IM-1 mission. "It is a profoundly humbling moment for all of us at Intuitive Machines. The opportunity to return the United States to the moon for the first time since 1972 is a feat of engineering that demands a hunger to explore," Intuitive Machines vice president of space systems Trent Martin said during a press conference.

The IM-1 lander, named "Odysseus" after the mythological Greek hero, is carrying 12 government and commercial payloads -- six of which are for NASA under an $118 million contract. NASA leadership emphasized before the launch that "IM-1 is an Intuitive Machines' mission, it's not a NASA mission." But it marks the second mission under NASA's Commercial Lunar Payload Services (CLPS) initiative, which aims to deliver science projects and cargo to the moon with increasing regularity in support of the agency's Artemis crew program. The agency views CLPS missions as "a learning experience," NASA's deputy associate administrator for exploration in the science mission directorate, Joel Kearns, told press before the launch.
UPDATE: See their first images transmitted from space....

Dumping chemicals in the ocean? Spraying saltwater into clouds? Injecting reflective particles into the sky? Scientists are resorting to once unthinkable techniques to cool the planet because global efforts to check greenhouse gas emissions are failing. From a report: These geoengineering approaches were once considered taboo by scientists and regulators who feared that tinkering with the environment could have unintended consequences, but now researchers are receiving taxpayer funds and private investments to get out of the lab and test these methods outdoors. The shift reflects growing concern that efforts to reduce greenhouse gas emissions aren't moving fast enough to prevent the destructive effects of heat waves, storms and floods made worse by climate change. Geoengineering isn't a substitute for reducing emissions, according to scientists and business leaders involved in the projects. Rather, it is a way to slow climate warming in the next few years while buying time to switch to a carbon-free economy in the longer term.

Three field experiments are under way in the U.S. and overseas. This month, researchers aboard a ship off the northeastern coast of Australia near the Whitsunday Islands are spraying a briny mixture through high-pressure nozzles into the air in an attempt to brighten low-altitude clouds that form over the ocean. Scientists hope bigger, brighter clouds will reflect sunlight away from the Earth, shade the ocean surface and cool the waters around the Great Barrier Reef, where warming ocean temperatures have contributed to massive coral die-offs. The research project, known as marine cloud brightening, is led by Southern Cross University as part of the $64.55 million, or 100 million Australian dollars, Reef Restoration and Adaptation Program. The program is funded by the partnership between the Australian government's Reef Trust and the Great Barrier Reef Foundation and includes conservation organizations and several academic institutions.

An anonymous reader shares a report: When California state legislators passed a 2014 law banning single-use plastic bags, the hope was that it would notably reduce the amount of discarded plastic. But fast-forward nearly a decade: Californians are tossing more pounds of plastic bags than before the legislation was passed. That's according to a recent report by the consumer advocacy group CALPIRG, which took population changes into account and found the tonnage of discarded bags rose from 4.08 per 1,000 people in 2014 to 5.89 per 1,000 people in 2022. How could this happen?

As Susanne Rust reported this week, plastic bag manufacturers replaced one kind of plastic bag for another. You've probably noticed them at grocery stores or had them loaded into your car during a drive-up order. These newer bags are thicker and meet technical specifications to be called "reusable." As Jenn Engstrom, CALPIRG'S state director, explained to Susanne, the switch created a loophole because the newer bags -- which typically cost 10 cents -- "are clearly not being reused and don't look like reusable bags and ... just circumvent the law's intent." The pandemic was also a contributing factor. COVID restrictions led many to get groceries, restaurant dishes and other products delivered to our doors, often in thick plastic bags.

There's an effort to close the loophole, though. New legislation is being proposed that would also ban the thicker plastic bags from grocery and large retail stores. Clearly, not enough consumers have changed their plastic bag habits at the checkout stand. But the onus isn't on individuals. Plastic manufacturers create these products. Businesses buy the bags so customers have somewhere to put the goods they buy from businesses. [...] Under the new law, at least 30% of plastic items sold, distributed or imported into California must be recyclable by Jan. 1, 2028. It also stipulates that single-use plastic waste be reduced 25% by 2032. But as Susanne pointed out, plastics companies will have notable oversight and authority over the program "via a Producer Responsibility Organization, which will be made up of industry representatives."

Researchers have made significant progress toward developing a blood test that can predict the risk of dementia up to 15 years before clinical diagnosis. The Guardian reports: Hopes for the test were raised after scientists discovered biological markers for the condition in blood samples collected from more than 50,000 healthy volunteers enrolled in the UK Biobank project. Analysis of the blood identified patterns of four proteins that predicted the onset of dementia in general, and Alzheimer's disease and vascular dementia specifically, in older age. When combined with more conventional risk factors such as age, sex, education and genetic susceptibility, the protein profiles allowed researchers to predict dementia with an estimated 90% accuracy nearly 15 years before people received clinical confirmation of the disease.

For the latest study, blood samples from 52,645 UK adults without dementia were collected and frozen between 2006 and 2010 and analyzed 10 to 15 years later. More than 1,400 participants went on to develop dementia. Using artificial intelligence, the researchers looked for connections between nearly 1,500 blood proteins and developing dementia years later. Writing in Nature Aging, they describe how four proteins, Gfap, Nefl, Gdf15 and Ltbp2, were present in unusual levels among those who developed all-cause dementia, Alzheimer's disease or vascular dementia. Higher levels of the proteins were warning signs of disease. Inflammation in the brain can trigger cells called astrocytes to over-produce Gfap, a known biomarker for Alzheimer's. People with raised Gfap were more than twice as likely to develop dementia than those with lower levels.

Another blood protein, Nefl, is linked to nerve fibre damage, while higher than normal Gdf15 can occur after damage to the brain's blood vessels. Rising levels of Gfap and Ltbp2 was highly specific for dementia rather than other brain diseases, the scientists found, with changes occurring at least 10 years before people received a dementia diagnosis. The researchers are speaking to companies to develop the test but said the cost, currently at several hundred pounds, would need to come down to make it viable.

"Mutant wolves roaming the deserted streets of Chernobyl appear to have developed resistance to cancer," reports Sky News, "raising hopes the findings can help scientists fight the disease in humans." Dr Cara Love, an evolutionary biologist and ecotoxicologist at Princeton University in the U.S., has been studying how the Chernobyl wolves survive despite generations of exposure to radioactive particles... The researchers discovered that Chernobyl wolves are exposed to upwards of 11.28 millirem of radiation every day for their entire lives — which is more than six times the legal safety limit for a human. Dr Love found the wolves have altered immune systems similar to cancer patients undergoing radiation treatment, but more significantly she also identified specific parts of the animals' genetic information that seemed resilient to increased cancer risk.
Thanks to long-time Slashdot reader AmiMoJo for sharing the news.

"Something revolutionary is on the horizon..." claims the company's web site. "Wearable neurotechnology that augments sleep, attention, and ultimately the human experience."

Or, as Fierce Biotech put it, "A startup emerged from stealth this week with grand plans to pioneer a new form of neurotech dubbed 'electric medicine.'" Elemind's approach centers on artificial intelligence-powered algorithms that are trained to continuously analyze neurological activity collected by a noninvasive wearable device, then to deliver through the wearable bursts of neurostimulation that are uniquely tailored to those real-time brain wave readings. The Cambridge, Massachusetts-based company claims that its approach — which is based on research from its founders, a group of high-profile scientists hailing from the likes of MIT, Stanford and Harvard — offers a more "natural" treatment option than pharmaceuticals for neurological conditions like insomnia, essential tremor and memory loss.

"Chemical drugs affect the entire body, often leading to unwanted side effects. Elemind offers a nonchemical, direct and on-demand solution that learns and dynamically adjusts to each person," Meredith Perry, a co-founder of Elemind and its CEO, said in the company's debut announcement. "We're the first and only company able to precisely guide and redirect brainwaves in real time."
"Elemind's first product is a general wellness device and will not be subject to FDA regulation," notes an announcement from the company. But they've thoroughly researched the product's potential: To date, Elemind's technology is supported by five clinical trials and several publications in peer-reviewed scientific journals. Clinical trials show Elemind's technology is effective at inducing sleep up to 74% faster, suppressing essential tremor with a significant decrease after only 30 seconds of stimulation, and boosting memory. Clinical trials also demonstrate Elemind is effective at increasing pain thresholds and enhancing sedation; this study is currently in peer review....

"You can think about it like noise cancellation for the mind," said Dr. David Wang, CTO and co-founder of Elemind. "Our technology uses phase-locking auditory stimuli to align precisely with the user's brainwaves and steer them to a different frequency associated with a different state."
The company plans to announce its first product within a few months, reports the Boston Globe, noting that the company's $12 million in seed funding came from "a consortium that includes Village Global, an early-stage venture fund backed by high-tech billionaires Jeff Bezos, Bill Gates., Reid Hoffman, and Ann Wojcicki..."

More info from VentureBeat.

schwit1 quotes a report from Phys.Org: The Joint European Torus (JET), one of the world's largest and most powerful fusion machines, has demonstrated the ability to reliably generate fusion energy, while simultaneously setting a world record in energy output. These notable accomplishments represent a significant milestone in the field of fusion science and engineering. In JET's final deuterium-tritium experiments (DTE3), high fusion power was consistently produced for five seconds, resulting in a ground-breaking record of 69 megajoules using a mere 0.2 milligrams of fuel.

JET is a tokamak, a design which uses powerful magnetic fields to confine a plasma in the shape of a doughnut. Most approaches to creating commercial fusion favor the use of two hydrogen variants -- deuterium and tritium. When deuterium and tritium fuse together they produce helium and vast amounts of energy, a reaction that will form the basis of future fusion powerplants. Dr. Fernanda Rimini, JET Senior Exploitation Manager, said, "We can reliably create fusion plasmas using the same fuel mixture to be used by commercial fusion energy powerplants, showcasing the advanced expertise developed over time."

Professor Ambrogio Fasoli, Program Manager (CEO) at EUROfusion, said, "Our successful demonstration of operational scenarios for future fusion machines like ITER and DEMO, validated by the new energy record, instill greater confidence in the development of fusion energy. Beyond setting a new record, we achieved things we've never done before and deepened our understanding of fusion physics." Dr. Emmanuel Joffrin, EUROfusion Tokamak Exploitation Task Force Leader from CEA, said, "Not only did we demonstrate how to soften the intense heat flowing from the plasma to the exhaust, we also showed in JET how we can get the plasma edge into a stable state thus preventing bursts of energy reaching the wall. Both techniques are intended to protect the integrity of the walls of future machines. This is the first time that we've ever been able to test those scenarios in a deuterium-tritium environment."

India's Space Research Organisation (ISRO) will send a humanoid robot astronaut into this space this year, then send it back alongside actual humans in 2025 on its long-delayed Gaganyaan orbital mission. From a report: According to the space agency, the robot-crewed Vyommitra Mission is scheduled for the third quarter of this year. The robot -- whose name translates to "Space Friend" in Sanskrit -- can monitor module parameters, issue alerts and execute life support operations. Vyommitra is also an excellent multitasker that can operate six panels while responding to queries and mimicking human functions. The humanoid speaks two languages: Hindi and English.

It's also been designated as female -- to the extent possible for a legless robot -- and sports coiffed hair, feminine facial features, and hands that look like they are wearing white gloves. It resembles a wax figurine or mannequin and The Register fancies it mostly manages to stay out of the Uncanny Valley -- the term applied to robots and digital depictions of humans that try to appear human but instead come off as creepy and/or unsettling.

An anonymous reader quotes a report from Ars Technica: Health insurance companies cannot use algorithms or artificial intelligence to determine care or deny coverage to members on Medicare Advantage plans, the Centers for Medicare & Medicaid Services (CMS) clarified in a memo (PDF) sent to all Medicare Advantage insurers. The memo -- formatted like an FAQ on Medicare Advantage (MA) plan rules -- comes just months after patients filed lawsuits claiming that UnitedHealth and Humana have been using a deeply flawed, AI-powered tool to deny care to elderly patients on MA plans. The lawsuits, which seek class-action status, center on the same AI tool, called nH Predict, used by both insurers and developed by NaviHealth, a UnitedHealth subsidiary.

According to the lawsuits, nH Predict produces draconian estimates for how long a patient will need post-acute care in facilities like skilled nursing homes and rehabilitation centers after an acute injury, illness, or event, like a fall or a stroke. And NaviHealth employees face discipline for deviating from the estimates, even though they often don't match prescribing physicians' recommendations or Medicare coverage rules. For instance, while MA plans typically provide up to 100 days of covered care in a nursing home after a three-day hospital stay, using nH Predict, patients on UnitedHealth's MA plan rarely stay in nursing homes for more than 14 days before receiving payment denials, the lawsuits allege.

It's unclear how nH Predict works exactly, but it reportedly uses a database of 6 million patients to develop its predictions. Still, according to people familiar with the software, it only accounts for a small set of patient factors, not a full look at a patient's individual circumstances. This is a clear no-no, according to the CMS's memo. For coverage decisions, insurers must "base the decision on the individual patient's circumstances, so an algorithm that determines coverage based on a larger data set instead of the individual patient's medical history, the physician's recommendations, or clinical notes would not be compliant," the CMS wrote. "In all, the CMS finds that AI tools can be used by insurers when evaluating coverage -- but really only as a check to make sure the insurer is following the rules," reports Ars. "An 'algorithm or software tool should only be used to ensure fidelity,' with coverage criteria, the CMS wrote. And, because 'publicly posted coverage criteria are static and unchanging, artificial intelligence cannot be used to shift the coverage criteria over time' or apply hidden coverage criteria."

The CMS also warned insurers to ensure that any AI tool or algorithm used "is not perpetuating or exacerbating existing bias, or introducing new biases." It ended its notice by telling insurers that it is increasing its audit activities and "will be monitoring closely whether MA plans are utilizing and applying internal coverage criteria that are not found in Medicare laws."

NASA's nearly $1 billion PACE mission launched atop a SpaceX Falcon 9 rocket early this morning, successfully making it to polar orbit -- a first for NASA since 1960. "When it's up and running, PACE will make key observations of Earth's atmosphere and climate and allow scientists to assess the health of our oceans like never before," notes Space.com. From the report: PACE, by the way, is the first U.S. government mission to launch to a polar orbit from Florida since Nov. 30, 1960. On that day, a Thor Able Star rocket took off on such a trajectory but failed, raining debris down on Cuba, some of which apparently killed a cow. Rather than risk further incidents, the U.S. decided to conduct all of its subsequent polar launches from Vandenberg Air Force Base (now Vandenberg Space Force Base) in California -- until now. That said, PACE wasn't the first mission of any type to launch to polar orbit from Florida's Space Coast in six decades: SpaceX had completed 11 such commercial missions before sending PACE on its way.

PACE's handlers will now work to get the 10.5-foot-long (3.2 meters) spacecraft and its various subsystems up to speed. After this checkout period, the satellite can begin its science work. That work will be done by three instruments. One of them, a spectrometer called the Ocean Color Instrument (OCI), will map out the ocean's many hues in great detail and an unprecedented range, from near-infrared wavelengths all way to the ultraviolet. These colors are determined by the interaction of sunlight with particles in seawater, such as the chlorophyll produced by photosynthetic plankton, the base of the marine food web. So OCI will reveal quite a bit about the health and status of ocean ecosystems, according to PACE team members.

"PACE's unprecedented spectral coverage will provide the first-ever global measurements designed to identify phytoplankton community composition," NASA officials wrote in a PACE mission description. "This will significantly improve our ability to understand Earth's changing marine ecosystems, manage natural resources such as fisheries and identify harmful algal blooms." The satellite's other two instruments are polarimeters. They'll measure how the oscillation of light in a plane, known as its polarization, is affected by passage through the ocean, clouds and aerosols (particles suspended in the atmosphere). "Measuring polarization states of UV-to-shortwave light at various angles provides detailed information on the atmosphere and ocean, such as particle size and composition," NASA officials wrote in the mission description.

"The jury took little time to determine that Michael Mann had been defamed by conservative writers who likened him to a pedophile," writes longtime Slashdot reader BishopBerkeley in a follow-up to Wednesday's story. "He has received a $1 million judgment against the writers. This was likely because scrutiny of his data showed no malfeasance or misuse of data, but the 'conservative' writers' accusations continued, nevertheless." The Associated Press reports: Mann's research was investigated after his and other scientists' emails were leaked in 2009 in an incident that brought further scrutiny of the "hockey stick" graph, with skeptics claiming Mann manipulated data. Investigations by Penn State and others found no misuse of data by Mann, but his work continued to draw attacks, particularly from conservatives. "Mann could be said to be the Jerry Sandusky of climate science, except for instead of molesting children, he has molested and tortured data," Simberg wrote. Another writer, Mark Steyn, later referenced Simberg's article in his own piece in National Review, calling Mann's research "fraudulent."

The jury in Superior Court of the District of Columbia awarded Mann $1 in compensatory damages from each writer; it also awarded punitive damages of $1,000 from Simberg and $1 million from Steyn. It announced its verdict after four weeks of trial and one day of deliberations. During the trial, Steyn represented himself, but said through his manager Melissa Howes that he would be appealing the $1 million award in punitive damages, saying it would have to face "due process scrutiny."

The U.S. Environmental Protection Agency (EPA) today unveiled new, stricter limits for PM2.5 (particulate smaller than 2.5 micrometers in diameter), commonly referred to as soot. As NPR notes, these particles are are "one of the deadliest types of air pollution." From the report: The agency lowered the allowable limit for annual PM2.5 levels from 12 micrograms per cubic meter to 9. That's a "significant reduction," says Regan Patterson, an air pollution expert at the University of California, Los Angeles. "The science is clear," says EPA Administrator Michal Regan. "Soot pollution is one of the most dangerous forms of air pollution and is linked to a range of serious and potentially deadly illnesses, including asthma and heart attacks."

The new standard represents the first tightening of the rules since 2012, but states will have several years to reach the new limits. The EPA left the daily limits on PM2.5 pollution unchanged, at 35 micrograms per cubic meter, saying the same efforts that will reduce pollution under the revised annual standard will drive down short-term pollution exposures as well. Decades of research have demonstrated that tiny particles are dangerous to people's health at nearly any concentration. The sources vary: fossil fuel combustion, agriculture, and industrial processes all add to the load, as does wildfire smoke and dust.

In aggregate, the tiny particles drive millions of premature deaths worldwide each year. The EPA estimates that the new, tighter standards will prevent about 4,500 premature deaths a year by 2032 in the U.S. and prevent about 800,000 asthma-related emergency visits. It estimates the lower pollution exposures could reduce healthcare costs by about $46 billion by that time.

Citing congressional budget gridlock, NASA's Jet Propulsion Laboratory (JPL) announced that it will lay off 530 employees, or about 8% of its workforce. SpaceNews reports: In a statement, JPL said it would lay off about 530 employees, as well as 40 contractors, after exhausting other efforts to reduce costs given potential spending reductions for NASA and specifically for Mars Sample Return (MSR), a major program for the Pasadena, California-based center. "After exhausting all other measures to adjust to a lower budget from NASA, and in the absence of a [fiscal year 2024] appropriation from Congress, we have had to make the difficult decision to reduce the JPL workforce through layoffs," JPL stated.

"While we still do not have an FY24 appropriation or the final word from Congress on our Mars Sample Return (MSR) budget allocation, we are now in a position where we must take further significant action to reduce our spending," JPL Director Laurie Leshin wrote in a memo. "In the absence of an appropriation, and as much as we wish we didn't need to take this action, we must now move forward to protect against even deeper cuts later were we to wait."

In a recent interview with Bloomberg, 23andMe CEO Anne Wojcicki said the company was considering splitting its consumer and therapeutics businesses in an effort to boost its stock price and maintain its listing. From a report: Bloomberg noted that the stock has lost more than 90% of its value since the company went public in 2021 through a SPAC merger. Bloomberg said the therapeutics business could be an attractive asset for a larger healthcare company. The business currently has two drug candidates in clinical trials and just received approval to commence testing for a third. The company's DNA database of more than 14 million customers is one of the world's largest. Currently, 23andMe derives most of its revenue from its consumer business, Bloomberg added.

23andMe's stock has been trading below $1 since December, hurt by revelations that hackers were able to access the personal information of around 50% of its subscribers. The company is also facing mounting litigation over the incident. The company is expected to release its Q4 earnings report after market close on Wednesday.

An AI chatbot helped increase the number of patients referred for mental-health services through England's National Health Service (NHS), particularly among underrepresented groups who are less likely to seek help, new research has found. MIT Tech Review: Demand for mental-health services in England is on the rise, particularly since the covid-19 pandemic. Mental-health services received 4.6 million patient referrals in 2022 -- the highest number on record -- and the number of people in contact with such services is growing steadily. But neither the funding nor the number of mental-health professionals is adequate to meet this rising demand, according to the British Medical Association.

The chatbot's creators, from the AI company Limbic, set out to investigate whether AI could lower the barrier to care by helping patients access help more quickly and efficiently. A new study, published this week in Nature Medicine, evaluated the effect that the chatbot, called Limbic Access, had on referrals to the NHS Talking Therapies for Anxiety and Depression program, a series of evidence-based psychological therapies for adults experiencing anxiety disorders, depression, or both. Venture capitalist Vinod Khosla comments on X: This landmark study codifies what we have believed for so long -- that AI will not only increase the quality of care but also massively improve its access, which is one of the largest barriers to good health in all corners of the globe.

The second of a pair of close flybys adds to the treasure trove of data that scientists have about Jupiter's volcanic moon. From a report: On Saturday, NASA's Juno orbiter got a second close-up with Io, Jupiter's third-largest moon and the most volcanic world of our solar system. The Juno spacecraft, which arrived at the gas giant in 2016, is on an extended mission to explore Jupiter's rings and moons. Its latest flyby, which complemented the mission's first close approach on Dec. 30, yielded even more views of the moon's hellish landscape.

Io's violent expulsions of sulfur and additional compounds give the moon its orange, yellow and blue hues. The process is similar to what happens around the volcanoes of Hawaii or the geysers in Yellowstone National Park, according to Scott Bolton, a physicist at the Southwest Research Institute who leads the Juno mission. "That must be what Io is like -- on steroids," he said. He added that it probably smells like those places, too.

Released on Sunday, the most recent shots of Juno are already ripe for discovery. Dr. Bolton saw on the surface of Io what appears to be a double volcanic plume spewing into space -- something that Juno has never caught before. Other scientists are noticing new lava flows and changes to familiar features spotted in past space missions like the Galileo probe, which made numerous close flybys of Io in the 1990s and 2000s. "That's the beauty of Io," said Jani Radebaugh, a planetary scientist at Brigham Young University who is not part of the Juno mission, but collaborates with the team on Io observations. Unlike our own moon, which remains frozen in time, Dr. Radebaugh said, "Io changes every day, every minute, every second."

Last June, Harvard professor Avi Loeb said he may have found fragments of alien technology from a meteor that landed in the waters off of Papua, New Guinea in 2014. "Since then, several researchers unrelated to the expedition have pushed back on his analysis," reports Boston Public Radio. "One October 2023 paper deemed the spherules were made by human-produced coal ash." Now, Loeb has published new findings that he claims debunk that theory.

"What we did is compare 55 elements from the periodic table in coal ash to those special spherules that we found," Loeb said. "And it's clearly very different." From the report: He said his work follows the scientific method: collecting materials, analyzing them and following the evidence. "It's not based on opinions," Loeb said. "And, of course, if you're not part of this scientific process and you are jealous of the attention that it gets, then you can raise a lot of criticism." When asked how he deals with that criticism, he said that, "by now, my skin turned into titanium." [...]

He believes more observatories should be built to expand on research of what's passing through closer to Earth, since astronomers are often fixated on faraway objects. "The best approach to figure it out is actually to do the scientific work of building observatories that look out and check what these objects are," Loeb said. "And if they happen to be birds, or airplanes, or Chinese balloons, so be it. We can move on after that. But we need to figure it out, it's our civil duty as scientists. "The universe is so vast that, rather than keep telling ourselves that there is nothing like us, we should search for it," he added.

Russian cosmonaut Oleg Kononenko set a world record for total time spent in space, "surpassing his compatriot Gennady Padalka who logged more than 878 days in orbit," reports Reuters. From the report: At 0830 GMT Kononenko broke the record, Roscosmos said. Kononenko is expected to reach a total of 1,000 days in space on June 5 and by late September he will have clocked 1,110 days. "I fly into space to do my favourite thing, not to set records," Kononenko told TASS in an interview from the International Space Station (ISS) where he is orbiting about 263 miles (423 km) from the earth. "I am proud of all my achievements, but I am more proud that the record for the total duration of human stay in space is still held by a Russian cosmonaut." The 59-year-old took the top spot from Padalka, who accumulated a total of 878 days, 11 hours, 29 minutes and 48 seconds, Roscosmos said.

Kononenko said that he worked out regularly to counter the physical effects of "insidious" weightlessness, but that it was on returning to earth that the realisation came of how much life he had missed out on. "I do not feel deprived or isolated," he said. "It is only upon returning home that the realisation comes that for hundreds of days in my absence the children have been growing up without a papa. No one will return this time to me." He said cosmonauts could now use video calls and messaging to keep in touch with relatives but getting ready for each new space flight became more difficult due to technological advances.

"The profession of a cosmonaut is becoming more complicated. The systems and experiments are becoming more complicated. I repeat, the preparation has not become easier," he said. Kononenko dreamed of going to space as a child and enrolled in an engineering institute, before undergoing cosmonaut training. His first space flight was in 2008. His current trip to the ISS launched last year on a Soyuz MS-24.

Julia Simon reports via NPR: In a D.C. courtroom, a trial is wrapping up this week with big stakes for climate science. One of the world's most prominent climate scientists is suing a right-wing author and a policy analyst for defamation. The case comes at a time when attacks on scientists are proliferating, says Peter Hotez, professor of Pediatrics and Molecular Virology at Baylor College of Medicine. Even as misinformation about scientists and their work keeps growing, Hotez says scientists haven't yet found a good way to respond. "The reason we're sort of fumbling at this is it's unprecedented. And there is no roadmap," he says. The climate scientist at the center of this trial is Michael Mann. The professor of earth and environmental science at the University of Pennsylvania gained prominence for helping make one of the most accessible, consequential graphs in the history of climate science. First published in the late 1990s, the graph shows thousands of years of relatively stable global temperatures. Then, when humans start burning lots of coal and oil, it shows a spike upward. Mann's graph looks like a hockey stick lying on its side, with the blade sticking straight up. The so-called "hockey stick graph" was successful in helping the public understand the urgency of global warming, and that made it a target, says Kert Davies, director of special investigations at the Center for Climate Integrity, a climate accountability nonprofit. "Because it became such a powerful image, it was under attack from the beginning," he says.

The attacks came from groups that reject climate science, some funded by the fossil fuel industry. In the midst of these types of attacks -- including the hacking of Mann's and other scientists' emails by unknown hackers -- Penn State, where Mann was then working, opened an investigation into his research. Penn State, as well as the National Science Foundation, found no evidence of scientific misconduct. But a policy analyst and an author wrote that they were not convinced. The trial in D.C. Superior Court involves posts from right-wing author Mark Steyn and policy analyst Rand Simberg. In an online post, Simberg compared Mann to former Penn State football coach Jerry Sandusky, a convicted child sex abuser. Simberg wrote that Mann was the "Sandusky of climate science," writing that Mann "molested and tortured data (PDF)." Steyn called Mann's research fraudulent. Mann sued the two men for defamation. Mann also sued the publishers of the posts, National Review and the Competitive Enterprise Institute, but in 2021, the court ruled they couldn't be held liable.

In court, Mann has argued that he lost funding and research opportunities. Steyn said in court that if Penn State's president, Graham Spanier, covered up child sexual assault, why wouldn't he cover up for Mann's science. The science in question used ice cores and tree rings to estimate Earth's past temperatures. "If Graham Spanier is prepared to cover up child rape, week in, week out, year in, year out, why would he be the least bit squeamish about covering up a bit of hanky panky with the tree rings and the ice cores?" Steyn asked the court. Mann and Steyn declined to speak to NPR during the ongoing trial. One of Simberg's lawyers, Victoria Weatherford, said "inflammatory does not equal defamatory" and that her client is allowed to express his opinion, even if it were wrong. "No matter how offensive or distasteful or heated it is," Weatherford tells NPR, "that speech is absolutely protected under the First Amendment when it's said against a public figure, if the person saying it believed that what they said was true."