An anonymous reader shares a report: It is shocking but not surprising. Lightning crackles on Mars, scientists reported on Wednesday. What they observed, however, were not jagged, high-voltage bolts like those on Earth, arcing thousands of feet from cloud to ground. Rather, the phenomenon was more like the shock you feel when you scuff your feet on the carpet on a cold winter morning and then touch a metal doorknob.

"This is like mini-lightning on Mars," Baptiste Chide, a scientist at the Research Institute in Astrophysics and Planetary Science in Toulouse, France, said of the centimeter-scale electrical discharges. Dr. Chide and his colleagues reported the findings in a paper published on Wednesday in the journal Nature. The electrical sparks, although not as dramatically violent as on Earth, could play an important role in chemical reactions in the Martian atmosphere.

An anonymous reader quotes a report from the Guardian: Nearly a century ago, scientists proposed that a mysterious invisible substance they named dark matter clumped around galaxies and formed a cosmic web across the universe. What dark matter is made from, and whether it is even real, are still open questions, but according to a study, the first direct evidence of the substance may finally have been glimpsed. More work is needed to rule out less exotic explanations, but if true, the discovery would go down as a turning point in the decades-long search for the elusive substance that is said to make up 27% of the cosmos.

"This could be a crucial breakthrough in unraveling the nature of dark matter," said Prof Tomonori Totani, an astrophysicist at the University of Tokyo, who said gamma rays emanating from the centre of the Milky Way appeared to bear the signature of the substance. [...] To search for potential dark matter signals, Totani analysed data from Nasa's Fermi Gamma-ray Space Telescope, which detects the most energetic photons in the electromagnetic spectrum. He spotted a pattern of gamma rays that appeared to match the shape of the dark matter halo that spreads out in a sphere from the heart of the galaxy. The signal "closely matches the properties of gamma-ray radiation predicted to be emitted by dark matter," Totani told the Guardian. Details are published in the Journal of Cosmology and Astroparticle Physics.

If Totani has seen dark matter at work, the observations suggest it is made from elementary particles 500 times more massive than the proton. But far more work is needed to rule out other astrophysical processes and background emissions that could explain the signals. Totani said the "decisive factor" would be detecting gamma rays with the same spectrum from other regions of space, such as dwarf galaxies. According to Prof Justin Read, an astrophysicist at the University of Surrey, the lack of significant signals from such galaxies strongly argues against Totani having seen gamma rays emitted from dark matter particle annihilation. Prof Kinwah Wu, a theoretical astrophysicist at UCL, urged caution, saying: "I appreciate the author's hard work and dedication, but we need extraordinary evidence for an extraordinary claim," he said. "This analysis has not reached this status yet. It is a piece of work which serves as an encouragement for the workers in the field to keep on pressing."

China launched an uncrewed Shenzhou 22 spacecraft to serve as an emergency lifeboat for three astronauts aboard the Tiangong space station after a docked return craft was found to have a cracked window likely caused by space debris. "A Long March 2F rocket fired its engines and lifted off with the Shenzhou 22 spacecraft, carrying cargo instead of a crew, at 11:11 pm EST Monday (04:11 UTC Tuesday)," reports Ars Technica. "The spacecraft docked with the Tiangong station nearly 250 miles (400 kilometers) above the Earth about three-and-a-half hours later." From the report: Chinese engineers worked fast to move up the launch of the Shenzhou 22, originally set to fly next year. On November 4, astronauts discovered one of the two crew ferry ships docked to the Tiangong station had a damaged window, likely from an impact with a small fragment of space junk. [...] Now, 20 days after the saga began, the Tiangong outpost again has a lifeboat for its long-term residents. Astronauts Zhang Lu, Fu Wei, and Zhang Hongzhang will return to Earth on the Shenzhou 22 spacecraft next year, soon after the arrival of their three replacements.

The Tiangong astronauts will head outside the station on a spacewalk to inspect the damaged window on Shenzhou 20. Eventually, Shenzhou 20 will depart Tiangong and reenter the atmosphere with cargo. Assuming a smooth landing, Chinese engineers will have an opportunity to get a closer look at the damage on the ground to inform the design of future spacecraft. A preliminary assessment of the window indicates the crack is in the outermost layer of heat-insulating glass in Shenzhou 20's porthole window, according to Chinese state media. Engineers on the ground conducted simulations and wind tunnel ablation tests to determine whether the window might fail during reentry. "The results showed that the cracks would still propagate further," reported CCTV, China's government-run television network. "We held review meeting, and everyone agreed that ensuring the safe return of the astronauts was too risky with the glass damaged," Zhou said.

While this crew is just one month into their planned six-month expedition, an emergency could force them to leave the station and return home at any time. Although remote, another collision with space junk, a major systems failure, or a medical emergency involving one of the astronauts could trigger an evacuation. That's why Chinese officials wanted to quickly launch Shenzhou 22 to give the crew a ticket home.The International Space Station follows the same policy, with SpaceX's Dragon spacecraft and Russian Soyuz ships serving as lifeboats until their crews' scheduled return to Earth.

The brain goes through five distinct phases in life, with key turning points at ages nine, 32, 66 and 83, scientists have revealed. From a report: Around 4,000 people up to the age of 90 had scans to reveal the connections between their brain cells. Researchers at the University of Cambridge showed that the brain stays in the adolescent phase until our early thirties when we "peak." They say the results could help us understand why the risk of mental health disorders and dementia varies through life. The brain is constantly changing in response to new knowledge and experience -- but the research shows this is not one smooth pattern from birth to death.

Some people will reach these landmarks earlier or later than others -- but the researchers said it was striking how clearly these ages stood out in the data. These patterns have only now been revealed due to the quantity of brain scans available in the study, which was published in the journal Nature Communications.

Researchers warn that rapid advances in neuroscience, pharmacology, and AI are bringing "brain weapons" out of science fiction and into real-world plausibility. They argue current arms treaties don't adequately cover these emerging tools and call for a new, proactive framework to prevent the weaponization of the human mind. The Guardian reports: Michael Crowley and Malcolm Dando, of Bradford University, are about to publish a book that they believe should be a wake-up call to the world. [...] The book, published by the Royal Society of Chemistry, explores how advances in neuroscience, pharmacology and artificial intelligence are coming together to create a new threat. "We are entering an era where the brain itself could become a battlefield," said Crowley. "The tools to manipulate the central nervous system -- to sedate, confuse or even coerce -- are becoming more precise, more accessible and more attractive to states."

The book traces the fascinating, if appalling, history of state-sponsored research into central nervous system (CNS)-acting chemicals. [...] The academics argue that the ability exists to create much more "sophisticated and targeted" weapons that would once have been unimaginable. Dando said: "The same knowledge that helps us treat neurological disorders could be used to disrupt cognition, induce compliance, or even in the future turn people into unwitting agents." The threat is "real and growing" but there are gaps in international arms control treaties preventing it from being tackled effectively, they say. [...]

The book makes the case for a new "holistic arms control" framework, rather than relying on existing arms control treaties. It sets out a number of practical steps that could be taken, including establishing a working group on CNS-acting and broader incapacitating agents. Other proposals concern training, monitoring and definitions. "We need to move from reactive to proactive governance," said Dando. Both men acknowledge that we are learning more about the brain and the central nervous system, which is good for humanity. They said they were not trying to stifle scientific progress and it was about preventing malign intent. Crowley said: "This is a wake-up call. We must act now to protect the integrity of science and the sanctity of the human mind."

Drug maker Novo Nordisk says semaglutide, the active ingredient for the weight loss jab Wegovy, does not slow Alzheimer's -- despite initial hopes that it might help against dementia. From a report: Researchers began two large trials involving more than 3,800 people after reports the medicine was having an impact in the real world. But the studies showed the GLP-1 drug, which is already used to manage type 2 diabetes and obesity, made no difference compared to a dummy drug. The disappointing results are due to be presented at an Alzheimer's disease conference next month and are yet to be published in a peer-reviewed journal.

In 2018 researchers claimed evidence of a lake beneath the surface of Mars, detected by the Mars Advanced Radar for Subsurface and Ionosphere Sounding instrument (or Marsis for short).

But new Mars observations "are not consistent with the presence of liquid water in this location and an alternative explanation, such as very smooth basal materials, is needed." Phys.org explains Aboard the Mars Reconnaissance Orbiter, the Shallow Radar (SHARAD) uses higher frequencies than MARSIS. Until recently, though, SHARAD's signals couldn't reach deep enough into Mars to bounce off the base layer of the ice where the potential water lies — meaning its results couldn't be compared with those from MARSIS. However, the Mars Reconnaissance Orbiter team recently tested a new maneuver that rolls the spacecraft on its flight axis by 120 degrees — whereas it previously could roll only up to 28 degrees. The new maneuver, termed a "very large roll," or VLR, can increase SHARAD's signal strength and penetration depth, allowing researchers to examine the base of the ice in the enigmatic high-reflectivity zone. Gareth Morgan and colleagues, for their article published in Geophysical Research Letters, examined 91 SHARAD observations that crossed the high-reflectivity zone.

Only when using the VLR maneuver was a SHARAD basal echo detected at the site. In contrast to the MARSIS detection, the SHARAD detection was very weak, meaning it is unlikely that liquid water is present in the high-reflectivity zone.

Theia crashed into earth and formed the moon, the theory goes. But then where did Theia come from? The lead author on a new study says "The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner Solar System. Earth and Theia are likely to have been neighbors."

Though Theia was completely destroyed in the collision, scientists from the Max Planck Institute for Solar System Research led a team that was able to measure the ratio of tell-tale isotopes in Earth and Moon rocks, Euronews explains: The research team used rocks collected on Earth and samples brought back from the lunar surface by Apollo astronauts to examine their isotopes. These isotopes act like chemical fingerprints. Scientists already knew that Earth and Moon rocks are almost identical in their metal isotope ratios. That similarity, however, has made it hard to learn much about Theia, because it has been difficult to separate material from early Earth and material from the impactor.

The new research attempts a kind of planetary reverse engineering. By examining isotopes of iron, chromium, zirconium and molybdenum, the team modelled hundreds of possible scenarios for the early Earth and Theia, testing which combinations could produce the isotope signatures seen today. Because materials closer to the Sun formed under different temperatures and conditions than those further out, those isotopes exist in slightly different patterns in different regions of the Solar System.

By comparing these patterns, researchers concluded that Theia most likely originated in the inner Solar System, even closer to the Sun than the early Earth.
The team published their findings in the journal Science. Its title? "The Moon-forming impactor Theia originated from the inner Solar System."

An anonymous reader shared this report from CNN: The universe's expansion might not be accelerating but slowing down, a new study suggests. If confirmed, the finding would upend decades of established astronomical assumptions and rewrite our understanding of dark energy, the elusive force that counters the inward pull of gravity in our universe...

Last year, a consortium of hundreds of researchers using data from the Dark Energy Spectroscopic Instrument (DESI) in Arizona, developed the largest ever 3D map of the universe. The observations hinted at the fact that dark energy may be weakening over time, indicating that the universe's rate of expansion could eventually slow. Now, a study published November 6 in the journal Monthly Notices of the Royal Astronomical Society provides further evidence that dark energy might not be pushing on the universe with the same strength it used to. The DESI project's findings last year represented "a major, major paradigm change ... and our result, in some sense, agrees well with that," said Young-Wook Lee, a professor of astrophysics at Yonsei University in South Korea and lead researcher for the new study....

To reach their conclusions, the researchers analyzed a sample of 300 galaxies containing Type 1a supernovas and posited that the dimming of distant exploding stars was not only due to their moving farther away from Earth, but also due to the progenitor star's age... [Study coauthor Junhyuk Son, a doctoral candidate of astronomy at Yonsei University, said] "we found that their luminosity actually depends on the age of the stars that produce them — younger progenitors yield slightly dimmer supernovae, while older ones are brighter." Son said the team has a high statistical confidence — 99.99% — about this age-brightness relation, allowing them to use Type 1a supernovas more accurately than before to assess the universe's expansion... Eventually, if the expansion continues to slow down, the universe could begin to contract, ending in what astronomers imagine may be the opposite of the big bang — the big crunch. "That is certainly a possibility," Lee said. "Even two years ago, the Big Crunch was out of the question. But we need more work to see whether it could actually happen."

The new research proposes a radical revision of accepted knowledge, so, understandably, it is being met with skepticism. "This study rests on a flawed premise," Adam Riess, a professor of physics and astronomy at the Johns Hopkins University and one of the recipients of the 2011 Nobel Prize in physics, said in an email. "It suggests supernovae have aged with the Universe, yet observations show the opposite — today's supernovae occur where young stars form. The same idea was proposed years ago and refuted then, and there appears to be nothing new in this version." Lee, however, said Riess' claim is incorrect. "Even in the present-day Universe, Type Ia supernovae are found just as frequently in old, quiescent elliptical galaxies as in young, star-forming ones — which clearly shows that this comment is mistaken. The so-called paper that 'refuted' our earlier result relied on deeply flawed data with enormous uncertainties," he said, adding that the age-brightness correlation has been independently confirmed by two separate teams in the United States and China... "Extraordinary claims require extraordinary evidence," Dragan Huterer, a professor of physics at the University of Michigan in Ann Arbor, said in an email, noting that he does not feel the new research "rises to the threshold to overturn the currently favored model...."

The new Vera C. Rubin Observatory, which started operating this year, is set to help settle the debate with the early 2026 launch of the Legacy Survey of Space and Time, an ultrawide and ultra-high-definition time-lapse record of the universe made by scanning the entire sky every few nights over 10 years to capture a compilation of asteroids and comets, exploding stars, and distant galaxies as they change.

ScienceDaily reports: Electrons can freeze into strange geometric crystals and then melt back into liquid-like motion under the right quantum conditions. Researchers identified how to tune these transitions and even discovered a bizarre "pinball" state where some electrons stay locked in place while others dart around freely. Their simulations help explain how these phases form and how they might be harnessed for advanced quantum technologies...

When electrons settle into these rigid arrangements, the material undergoes a shift in its state of matter and stops conducting electricity. Instead of acting like a metal, it behaves as an insulator. This unusual behavior provides scientists with valuable insight into how electrons interact and has opened the door to advances in quantum computing, high-performance superconductors used in energy and medical imaging, innovative lighting systems, and extremely precise atomic clocks... [Florida State University assistant professor Cyprian Lewandowski said] "Here, it turns out there are other quantum knobs we can play with to manipulate states of matter, which can lead to impressive advances in experimental research."

The Washington Post reports: Scientists in Switzerland have created a robot the size of a grain of sand that is controlled by magnets and can deliver drugs to a precise location in the human body, a breakthrough aimed at reducing the severe side effects that stop many medicines from advancing in clinical trials... "I think surgeons are going to look at this," [said Bradley J. Nelson, an author of the paper in Science describing the discovery and a professor of robotics and intelligent systems at ETH Zurich]. I'm sure they're going to have a lot of ideas on how to use" the microrobot. The capsule, which is steered by magnets, might also be useful in treating aneurysms, very aggressive brain cancers, and abnormal connections between arteries and veins known as arteriovenous malformations, Nelson said. The capsules have been tested successfully in pigs, which have similar vasculature to humans, and in silicone models of the blood vessels in humans and animals... Nelson said drug-ferrying microrobots of this kind may be three to five years from being tested in clinical trials. The problem faced by many drugs under development is that they spread throughout the body instead of going only to the area in need... A major cause of side effects in patients is medications traveling to parts of the body that don't need them. The capsules developed in Switzerland, however, can be maneuvered into precise locations by a surgeon using a tool not that different from a PlayStation controller. The navigation system involves six electromagnetic coils positioned around the patient, each about 8 to 10 inches in diameter... The capsules are made of materials that have been found safe for people in other medical tools...

When the capsule reaches its destination in the body, "we can trigger the capsule to dissolve," Nelson said.

fahrbot-bot shares a report from Phys.org: Physicists from Swansea University have played the leading role in a scientific breakthrough at CERN, developing an innovative technique that increases the antihydrogen trapping rate by a factor of ten. The advancement, achieved as part of the international Antihydrogen Laser Physics Apparatus (ALPHA) collaboration, has been published in Nature Communications and could help answer one of the biggest questions in physics: Why is there such a large imbalance between matter and antimatter? According to the Big Bang theory, equal amounts were created at the beginning of the universe, so why is the world around us made almost entirely of matter?

Antihydrogen is the "mirror version" of hydrogen, made from an antiproton and a positron. Trapping and studying it helps scientists explore how antimatter behaves, and whether it follows the same rules as matter. Producing and trapping antihydrogen is an extremely complicated process. Previous methods took 24 hours to trap just 2,000 atoms, limiting the scope of experiments at ALPHA. The Swansea-led team has changed that. Using laser-cooled beryllium ions, the team has demonstrated that it is possible to cool positrons to less than 10 Kelvin (below -263C), significantly colder than the previous threshold of about 15 Kelvin. These cooler positrons dramatically boost the efficiency of antihydrogen production and trapping -- allowing a record 15,000 atoms to be trapped in less than seven hours.

alternative_right shares a report from Phys.org: Inspired by moss's resilience, researchers sent moss sporophytes -- reproductive structures that encase spores -- to the most extreme environment yet: space. Their results, published in the journal iScience on November 20, show that more than 80% of the spores survived nine months outside of the International Space Station (ISS) and made it back to Earth still capable of reproducing, demonstrating for the first time that an early land plant can survive long-term exposure to the elements of space.

[Lead author Tomomichi Fujita of Hokkaido University and his team] subjected Physcomitrium patens, a well-studied moss commonly known as spreading earthmoss, to a simulated a space environment, including high levels of UV radiation, extreme high and low temperatures, and vacuum conditions. They tested three different structures from the moss -- protenemata, or juvenile moss; brood cells, or specialized stem cells that emerge under stress conditions; and sporophytes, or encapsulated spores -- to find out which had the best chance of surviving in space.

The researchers found that UV radiation was the toughest element to survive, and the sporophytes were by far the most resilient of the three moss parts. None of the juvenile moss survived high UV levels or extreme temperatures. The brood cells had a higher rate of survival, but the encased spores exhibited ~1,000x more tolerance to UV radiation. The spores were also able to survive and germinate after being exposed to 196C for over a week, as well as after living in 55C heat for a month.

A Centers for Disease Control and Prevention webpage that previously made the case that vaccines don't cause autism now says they might. WSJ: The contents of the webpage came up during Health Secretary Robert F. Kennedy Jr. Senate confirmation process. Sen. Bill Cassidy (R., La.) in February said Kennedy had assured him that, if he was confirmed, the CDC would "not remove statements on their website pointing out that vaccines do not cause autism."

The revised webpage says: "The claim 'vaccines do not cause autism' is not an evidence-based claim because studies have not ruled out the possibility that infant vaccines cause autism. Studies supporting a link have been ignored by health authorities." The new text posted Wednesday also notes that the Department of Health and Human Services has launched "a comprehensive assessment" to probe the causes of autism.

An anonymous reader shares a report: For the past several years, America has been using its young people as lab rats in a sweeping, if not exactly thought-out, education experiment. Schools across the country have been lowering standards and removing penalties for failure. The results are coming into focus.

Five years ago, about 30 incoming freshmen at UC San Diego arrived with math skills below high-school level. Now, according to a recent report from UC San Diego faculty and administrators, that number is more than 900 -- and most of those students don't fully meet middle-school math standards. Many students struggle with fractions and simple algebra problems. Last year, the university, which admits fewer than 30 percent of undergraduate applicants, launched a remedial-math course that focuses entirely on concepts taught in elementary and middle school. (According to the report, more than 60 percent of students who took the previous version of the course couldn't divide a fraction by two.) One of the course's tutors noted that students faced more issues with "logical thinking" than with math facts per se. They didn't know how to begin solving word problems.

The university's problems are extreme, but they are not unique. Over the past five years, all of the other University of California campuses, including UC Berkeley and UCLA, have seen the number of first-years who are unprepared for precalculus double or triple. George Mason University, in Virginia, revamped its remedial-math summer program in 2023 after students began arriving at their calculus course unable to do algebra, the math-department chair, Maria Emelianenko, told me.

"We call it quantitative literacy, just knowing which fraction is larger or smaller, that the slope is positive when it is going up," Janine Wilson, the chair of the undergraduate economics program at UC Davis, told me. "Things like that are just kind of in our bones when we are college ready. We are just seeing many folks without that capability."

Part of what's happening here is that as more students choose STEM majors, more of them are being funneled into introductory math courses during their freshman year. But the national trend is very clear: America's students are getting much worse at math. The decline started about a decade ago and sharply accelerated during the coronavirus pandemic. The average eighth grader's math skills, which rose steadily from 1990 to 2013, are now a full school year behind where they were in 2013, according to the National Assessment of Educational Progress, the gold standard for tracking academic achievement. Students in the bottom tenth percentile have fallen even further behind. Only the top 10 percent have recovered to 2013 levels.

Researchers in Germany achieved a major milestone for the future quantum internet by successfully teleporting quantum information between photons generated by two different, physically separated quantum dots -- something never accomplished before due to the difficulty of producing indistinguishable photons from remote sources. Phys.org reports: At the University of Stuttgart, the team succeeded in teleporting the polarization state of a photon originating from one quantum dot to another photon from a second quantum dot. One quantum dot generates a single photon, the other an entangled photon pair. Entangled means that the two particles constitute a single quantum entity, even when they are physically separated. One of the two particles travels to the second quantum dot and interferes with its light particle. The two overlap. Because of this superposition, the information of the single photon is transferred to the distant partner of the pair.

Instrumental for the success of the experiment were quantum frequency converters, which compensate for residual frequency differences between the photons. These converters were developed by a team led by Prof. Christoph Becher, an expert in quantum optics at Saarland University. [...] In the Stuttgart experiment, the quantum dots were separated only by an optical fiber of about 10 m length. "But we are working on achieving considerably greater distances," says Strobel. In earlier work, the team had shown that the entanglement of the quantum dot photons remains intact even after a 36-kilometer transmission through the city center of Stuttgart. Another aim is to increase the current success rate of teleportation, which currently stands at just over 70%. Fluctuations in the quantum dot still lead to slight differences in the photons. The findings have been published in the journal Nature Communications.

A new treatment for tuberculosis could boost cure rates and shorten the time needed to treat the disease by months, trial results suggest. The Guardian: Globally, an estimated 10.7 million people fell ill with TB last year and 1.23 million died from it. In its annual report on tuberculosis, launched last week, the World Health Organization said it remained a "major global public-health problem" and the leading infectious cause of death. [...] Sorfequiline, a new antibiotic, showed stronger action against the deadly bacteria than existing treatments, with a comparable safety profile, researchers from the TB Alliance told the Union Conference on Lung Health in Copenhagen on Wednesday.

The trial involved 309 people across 22 sites in South Africa, the Philippines, Georgia, Tanzania and Uganda, with different dose regimens. All participants had "drug-sensitive" tuberculosis, meaning a standard cocktail of drugs can safely treat them but researchers believe TB infections that are resistant to standard treatment could also be helped. The trial suggested a sorfequiline-based regimen could be used for anyone testing positive, said Dr Maria Beumont, vice-president of TB Alliance.

Action is needed now to reduce ultra-processed food (UPF) in diets worldwide because of their threat to health, say international experts in a global review of research. From a report: They say the way we eat is changing - with a move away from fresh, whole foods to cheap, highly-processed meals - which is increasing our risk of a range of chronic diseases, including obesity and depression. Writing in The Lancet, the researchers say governments need "to step up" and introduce warnings and higher taxes on UPF products, to help fund access to more nutritious foods.

[...] This review of evidence on the impact of UPFs on health, carried out by 43 global experts and based on 104 long-term studies, suggests these foods are linked to a greater risk of 12 health conditions. These include type 2 diabetes, cardiovascular disease, kidney disease, depression and dying prematurely from any cause.

An anonymous reader shares a report: Federal health officials have linked two massive US measles outbreaks, confirming that the country is about two months away from losing its measles elimination status, according to a report by The New York Times. The Times obtained a recording of a call during which officials from the Centers for Disease Control and Prevention confirmed to state health departments that the ongoing measles outbreak at the border of Arizona and Utah is a continuation of the explosive outbreak in West Texas that began in mid- to late-January. That is, the two massive outbreaks are being caused by the same subtype of measles virus.

This is a significant link that hasn't previously been reported despite persistent questions from journalists and concerns from health experts, particularly in light of Canada losing its elimination status last week. The loss of an elimination status means that measles will once again be considered endemic to the US, an embarrassing public health backslide for a vaccine-preventable disease.

A Chinese man who cryogenically preserved his wife after her death has sparked a heated online debate after it emerged he began dating a new partner in 2020. Some argue it's natural for him to move on, while others say he's being selfish or disrespectful to both his late wife and his current partner. The BBC reports: As a sign of his devotion, Gui Junmin decided to freeze his wife Zhan Wenlian's body after she died from lung cancer in 2017, aged 49, making her China's first cryogenically preserved person. But after a November interview revealed he had been dating a different partner since 2020, Chinese social media has been torn on Mr Junmin's predicament. Whilst some asked why the 57-year-old didn't just "let go" another commenter remarked he appeared to be "most devoted to himself."

After Zhan Wenlian was given months to live by doctors, Gui Junmin decided to use cryonics - which is scientifically unproven - to preserve her body once she died. Following her death, he signed a 30-year agreement to preserve his wife's frozen body with the Shandong Yinfeng Life Science Research Institute. Since then, Zhan's body has been stored in a 2,000-litre container at the institute in a vat of -190C liquid nitrogen.

Chinese newspaper Southern Weekly revealed that although Mr Junmin lived alone for two years after the procedure, in 2020 he began dating again, despite his wife remaining in cryopreservation. He told the newspaper that a severe gout attack which left him unable to move for two days began to change his mind about the benefits of living alone. Soon after, he started seeing his current partner Wang Chunxia, although Mr Junmin suggested to the paper the love was only "utilitarian" and that she hadn't "entered" his heart.