Research shows there is a 'sweet spot' and subjective wellbeing drops off after about five hours. The Guardian: The lesson of Goldilocks, that one can have too much of a good thing, even when it comes to the size of a chair, has applied in fields from astrobiology to economics. Now, it seems it may even govern our free time. Researchers have found that while levels of subjective wellbeing initially rise as free time increases, the trend does not necessarily hold for very high levels of leisure. "The sweet spot is a moderate amount of free time," said Dr Marissa Sharif, a co-author of the study from the University of Pennsylvania. "We found that having too much time was associated with lower subjective wellbeing due to a lacking sense of productivity and purpose."

Writing in the Journal of Personality and Social Psychology, Sharif and colleagues reported how they analysed results from two large-scale surveys, involving a combined total of more than 35,000 participants. One was the American Time Use Survey, which was carried out between 2012 and 2013 and asked participants what they had done in the past 24 hours. After crowdsourcing opinions on which activities would be equated with leisure time and then calculating this time for participants, the team found that while subjective wellbeing rose with the amount of free time up to about two hours, it began to drop once it exceeded five hours. Meanwhile data from the National Study of the Changing Workforce, carried out between 1992 and 2008, revealed that beyond a certain point, having more free time was no longer linked to greater subjective wellbeing, but it did not dip -- possibly because few of the participants reported having more than five hours of free time a day.

A crop of companies want to make sperm-freezing a routine procedure for young men, as employers start to offer it as a benefit. From a report: For decades, the conversation about waning fertility has been focused largely on women. Think of Marisa Tomei stomping on the floorboards of a front porch to emulate her biological clock ticking in "My Cousin Vinny." More employers cover the cost of cryogenic egg freezing as a workplace benefit. Recently, a small group of biotech startups have hatched, dedicated to what they say is an underserved market: male fertility. Armed with recent scientific research suggesting that the quality of sperm is declining in the West, the companies are trying to make sperm-freezing a routine procedure for young, healthy men, one covered by health insurance and free of stigma.

"My fundamental belief is that if the product is affordable, this should be a no-brainer for every man," says Khaled Kteily, the 32-year-old founder of Legacy, one of the companies that Mr. Alam used to freeze his sperm. "I believe that in the future," he adds, "this will be something that parents will buy for their kids as a not-so-subtle gift." The push to make a case for its business is starting to catch on. The company recently struck a deal to eventually provide free sperm testing and storage to all active duty service members in the U.S. military, starting with the Navy SEALs, of which there are about 1,200 a year, and expanding next to all special operations forces. The Navy didn't respond to a request for comment. Soldiers regularly experience risky situations and time away from their partners, says Ellen Gustafson, a Navy wife and co-founder of the Military Family Coalition, a nonprofit that advocates for coverage of fertility medicine for members of the armed forces.

Here's a sentence that's basically unintelligible to most people: Humans must mitigate global warming by pursuing an unprecedented transition to a carbon neutral economy. A recent study found that some of the most common terms in climate science are confusing to the general public. From a report: The study tested words that are frequently used in international climate reports, and it concluded that the most confusing terms were "mitigation," "carbon neutral" and "unprecedented transition." "I think the main message is to avoid jargon," says Wandi Bruine de Bruin, a behavioral scientist at the University of Southern California and the lead author of the study. "That includes words that may seem like everyone should understand them."

For example, participants in the study mixed up the word "mitigation," which commonly refers to efforts that reduce greenhouse gas emissions, with the word "mediation," which is a way to resolve disputes. And even simple terms such as "carbon" can be misleading, the study found. Sometimes, carbon is shorthand for carbon dioxide. Other times, it's used to refer to multiple greenhouse gases. "As experts in a particular field, we may not realize which of the words that we're using are jargon," says Bruine de Bruin.

The study is the latest indication that scientists need to do a better job communicating about global warming, especially when the intended audience is the general public. Clear climate communication gets more important every day because climate change is affecting every part of life on Earth. Nurses, doctors, farmers, teachers, engineers and business executives need reliable, accessible information about how global warming is affecting their patients, crops, students, buildings and businesses. And extreme weather this summer -- from floods to fires, hurricanes to droughts -- underscores the urgency of clear climate communication.

NIST: Using a groundbreaking new technique at the National Institute of Standards and Technology (NIST), an international collaboration led by NIST researchers has revealed previously unrecognized properties of technologically crucial silicon crystals and uncovered new information about an important subatomic particle and a long-theorized fifth force of nature. By aiming subatomic particles known as neutrons at silicon crystals and monitoring the outcome with exquisite sensitivity, the NIST scientists were able to obtain three extraordinary results: the first measurement of a key neutron property in 20 years using a unique method; the highest-precision measurements of the effects of heat-related vibrations in a silicon crystal; and limits on the strength of a possible "fifth force" beyond standard physics theories.

In a regular crystal such as silicon, there are many parallel sheets of atoms, each of which forms a plane. Probing different planes with neutrons reveals different aspects of the crystal. The researchers report their findings in the journal Science. To obtain information about crystalline materials at the atomic scale, scientists typically aim a beam of particles (such as X-rays, electrons or neutrons) at the crystal and detect the beam's angles, intensities and patterns as it passes through or ricochets off planes in the crystal's lattice-like atomic geometry. That information is critically important for characterizing the electronic, mechanical and magnetic properties of microchip components and various novel nanomaterials for next-generation applications including quantum computing. A great deal is known already, but continued progress requires increasingly detailed knowledge.

fahrbot-bot shares a report from Live Science: Astronomers have detected a strange, repeating radio signal near the center of the Milky Way, and it's unlike any other energy signature ever studied. According to a new paper accepted for publication in The Astrophysical Journal and posted on the preprint server arXiv, the energy source is extremely finicky, appearing bright in the radio spectrum for weeks at a time and then completely vanishing within a day. This behavior doesn't quite fit the profile of any known type of celestial body, the researchers wrote in their study, and thus may represent "a new class of objects being discovered through radio imaging."

The radio source -- known as ASKAP J173608.2321635 -- was detected with the Australian Square Kilometer Array Pathfinder (ASKAP) radio telescope, situated in the remote Australian outback. In an ASKAP survey taken between April 2019 and August 2020, the strange signal appeared 13 times, never lasting in the sky for more than a few weeks, the researchers wrote. This radio source is highly variable, appearing and disappearing with no predictable schedule, and doesn't seem to appear in any other radio telescope data prior to the ASKAP survey.

When the researchers tried to match the energy source with observations from other telescopes -- including the Chandra X-ray Observatory and the Neil Gehrels Swift Observatory, as well as the Visible and Infrared Survey Telescope for Astronomy in Chile, which can pick up near-infrared wavelengths -- the signal disappeared entirely. With no apparent emissions in any other part of the electromagnetic spectrum, ASKAP J173608.2-321635 is a radio ghost that seems to defy explanation. Prior surveys have detected low-mass stars that periodically flare up with radio energy, but those flaring stars typically have X-ray counterparts, the researchers wrote. That makes a stellar source unlikely here. Dead stars, like pulsars and magnetars (two types of ultradense, collapsed stars), are also unlikely explanations, the team wrote. The report goes on to say that the closest match is a mysterious class of object known as a galactic center radio transient (GCRT), a rapidly glowing radio source that brightens and decays near the Milky Way's center, usually over the course of a few hours. "So far, only three GCRTs have been confirmed, and all of them appear and disappear much more quickly than this new ASKAP object does," reports Live Science. "However, the few known GCRTs do shine with a similar brightness as the mysterious signal, and their radio flare-ups are never accompanied by X-rays."

David Chandler writes via MIT News: It was a moment three years in the making, based on intensive research and design work: On Sept. 5, for the first time, a large high-temperature superconducting electromagnet was ramped up to a field strength of 20 tesla, the most powerful magnetic field of its kind ever created on Earth. That successful demonstration helps resolve the greatest uncertainty in the quest to build the world's first fusion power plant that can produce more power than it consumes, according to the project's leaders at MIT and startup company Commonwealth Fusion Systems (CFS). That advance paves the way, they say, for the long-sought creation of practical, inexpensive, carbon-free power plants that could make a major contribution to limiting the effects of global climate change.

Developing the new magnet is seen as the greatest technological hurdle to making that happen; its successful operation now opens the door to demonstrating fusion in a lab on Earth, which has been pursued for decades with limited progress. With the magnet technology now successfully demonstrated, the MIT-CFS collaboration is on track to build the world's first fusion device that can create and confine a plasma that produces more energy than it consumes. That demonstration device, called SPARC, is targeted for completion in 2025.

The Covid-19 pandemic has severely set back the fight against other global scourges like H.I.V., tuberculosis and malaria, according to a sobering new report released on Tuesday. From a report: Before the pandemic, the world had been making strides against these illnesses. Overall, deaths from those diseases have dropped by about half since 2004. "The advent of a fourth pandemic, in Covid, puts these hard-fought gains in great jeopardy," said Mitchell Warren, executive director of AVAC, a nonprofit organization promoting H.I.V. treatment worldwide. The pandemic has flooded hospitals and disrupted supply chains for tests and treatments. In many poor countries, the coronavirus crisis diverted limited public health resources away from treatment and prevention of these diseases. Many fewer people sought diagnosis or medication, because they were afraid of becoming infected with the coronavirus at clinics. And some patients were denied care because their symptoms, such as a cough or a fever, resembled those of Covid-19.

Unless comprehensive efforts to beat back the illnesses resume, "we'll continue to play emergency response and global health Whac-a-Mole," Mr. Warren said. The report was compiled by the Global Fund, an advocacy group that funds campaigns against H.I.V., malaria and tuberculosis. Before the arrival of the coronavirus, TB was the biggest infectious-disease killer worldwide, claiming more than one million lives each year. The pandemic has exacerbated the damage. In 2020, about one million fewer people were tested and treated for TB, compared with 2019 -- a drop of about 18 percent, according to the new report. The number of people treated for drug-resistant TB declined by 19 percent, and for extensively drug-resistant TB by 37 percent. Nearly 500,000 people were diagnosed with drug-resistant TB in 2019.

NASA's long-awaited and high-powered James Webb Space Telescope won't begin observations this year after NASA and its counterpart the European Space Agency (ESA) announced another launch delay. From a report: In coordinated statements, the two agencies announced that the observatory is now targeting a launch on Dec. 18, more than six weeks after its previously set liftoff date. The highly-anticipated project has racked up consistently escalating budget and schedule overruns since development began in the 1990s. "We now know the day that thousands of people have been working towards for many years, and that millions around the world are looking forward to," Gunther Hasinger, ESA's director of science, said in an agency statement. "Webb and its Ariane 5 launch vehicle are ready, thanks to the excellent work across all mission partners. We are looking forward to seeing the final preparations for launch at Europe's Spaceport."

A robot called CIMON-2 (short for Crew Interactive Mobile Companion) has received a software update that will enable it to perform more complex tasks with a new human crewmate later this year. Space.com reports: The cute floating sphere with a cartoon-like face has been stored at the space station since the departure of the European Space Agency's (ESA) astronaut Luca Parmitano in February 2020. The robot will wake up again during the upcoming mission of German astronaut Matthias Maurer, who will arrive at the orbital outpost with the SpaceX Crew-3 Dragon mission in October. In the year and a half since the end of the last mission, engineers have worked on improving CIMON's connection to Earth so that it could provide a more seamless service to the astronauts, CIMON project manager Till Eisenberg at Airbus, which developed the intelligent robot together with the German Aerospace Centre DLR and the LMU University in Munich, told Space.com.

"The sphere is just the front end," Eisenberg said. "All the voice recognition and artificial intelligence happens on Earth at an IBM data centre in Frankfurt, Germany. The signal from CIMON has to travel through satellites and ground stations to the data centre and back. We focused on improving the robustness of this connection to prevent disruptions." CIMON relies on IBM's Watson speech recognition and synthesis software to converse with astronauts and respond to their commands. The first generation robot flew to the space station with Alexander Gerst in 2018. That robot later returned to Earth and is now touring German museums. The current robot, CIMON-2, is a second generation. Unlike its predecessor, it is more attuned to the astronauts' emotional states (thanks to the Watson Tone Analyzer). It also has a shorter reaction time.

Airbus and DLR have signed a contract with ESA for CIMON-2 to work with four humans on the orbital outpost in the upcoming years. During those four consecutive missions, engineers will first test CIMON's new software and then move on to allowing the sphere to participate in more complex experiments. During these new missions CIMON will, for the first time, guide and document complete scientific procedures, Airbus said in a statement. "Most of the activities that astronauts perform are covered by step by step procedures," Eisenberg said. "Normally, they have to use clip boards to follow these steps. But CIMON can free their hands by floating close by, listening to the commands and reading out the procedures, showing videos, pictures and clarifications on its screen." The robot can also look up additional information and document the experiments by taking videos and pictures. The scientists will gather feedback from the astronauts to see how helpful the sphere really was and identify improvements for CIMON's future incarnations.

Astrobiologist Paul Davies suggests viruses may form a vital part of ecosystems on other planets. The Guardian reports: "Viruses actually form part of the web of life," said Davies. "I would expect that if you've got microbial life on another planet, you're bound to have -- if it's going to be sustainable and sustained -- the full complexity and robustness that will go with being able to exchange genetic information." Viruses, said Davies, can be thought of as mobile, genetic elements. Indeed, a number of studies have suggested genetic material from viruses has been incorporated into the genomes of humans and other animals by a process known as horizontal gene transfer. "A friend of mine thinks most, but certainly a significant fraction, of the human genome is actually of viral origin," said Davies, whose new book, What's Eating the Universe?, was published last week.

According to Davies, while the importance of microbes to life is well known, the role of viruses is less widely appreciated. But he said if there is cellular life on other worlds, viruses or something similar, would probably exist to transfer genetic information between them. What's more, he said, it is unlikely alien life would be homogenous. "I don't think it's a matter that you go to some other planet, and there will just be you one type of microbe and it's perfectly happy. I think it's got to be a whole ecosystem," he added. While the thought of extraterrestrial viruses may seem alarming, Davies suggests there is no need for humans to panic. "The dangerous viruses are those that are very closely adapted to their hosts," he said. "If there is a truly alien virus, then chances are it wouldn't be remotely dangerous."

Davies [...] said it is also important should humans attempt to colonize another planet. "Most people think about, well, we would need to have very large spacecraft, and then sort of recycle things for the very long journey, and then all the technology you'd need to take," he said. "Actually, the toughest part of this problem is what would be the microbiology that you'd have to take -- it's no good just taking a few pigs and potatoes and things like that and hoping when you get to the other end it'll all be wonderful and self sustainable." While Covid has left most of us with a dim view of viruses, Davies said they are not all bad. "In fact, mostly, they're good," he said. [A]s Davies notes, a significant fraction of the human genome may be remnants of ancient viruses. "We hear about the microbiome inside us, and there's a planetary microbiome," said Davies. But, he argues there is also a human and planetaryvirome, with viruses playing a fundamental role in nature. "I think without viruses, there may be no sustained life on planet Earth," he said.

Some scientists have called it "superhuman immunity" or "bulletproof." But immunologist Shane Crotty prefers "hybrid immunity." "Overall, hybrid immunity to SARS-CoV-2 appears to be impressively potent," Crotty wrote in commentary in Science back in June. From a report: No matter what you call it, this type of immunity offers much-needed good news in what seems like an endless array of bad news regarding COVID-19. Over the past several months, a series of studies has found that some people mount an extraordinarily powerful immune response against SARS-CoV-2, the coronavirus that causes the disease COVID-19. Their bodies produce very high levels of antibodies, but they also make antibodies with great flexibility -- likely capable of fighting off the coronavirus variants circulating in the world but also likely effective against variants that may emerge in the future.

"One could reasonably predict that these people will be quite well protected against most -- and perhaps all of -- the SARS-CoV-2 variants that we are likely to see in the foreseeable future," says Paul Bieniasz, a virologist at Rockefeller University who helped lead several of the studies. In a study published online last month, Bieniasz and his colleagues found antibodies in these individuals that can strongly neutralize the six variants of concern tested, including delta and beta, as well as several other viruses related to SARS-CoV-2, including one in bats, two in pangolins and the one that caused the first coronavirus pandemic, SARS-CoV-1. "This is being a bit more speculative, but I would also suspect that they would have some degree of protection against the SARS-like viruses that have yet to infect humans," Bieniasz says.

Animals are increasingly "shapeshifting" because of the climate crisis, researchers have said. From a report: Warm-blooded animals are changing their physiology to adapt to a hotter climate, the scientists found. This includes getting larger beaks, legs and ears to better regulate their body temperature. When animals overheat, birds use their beaks and mammals use their ears to disperse the warmth. Some creatures in warmer climates have historically evolved to have larger beaks or ears to get rid of heat more easily. These differences are becoming more pronounced as the climate warms. If animals fail to control their body temperature, they can overheat and die. Beaks, which are not covered by feathers and therefore not insulated, are a site of significant heat exchange, as are ears, tails and legs in mammals if not covered by fur.

The review, published in the journal Trends in Ecology & Evolution, found that the differences are particularly pronounced in birds. The author of the study, Sara Ryding of Deakin university, a bird researcher, said: "Shapeshifting does not mean that animals are coping with climate change and that all is fine. "It just means they are evolving to survive it -- but we're not sure what the other ecological consequences of these changes are, or indeed that all species are capable of changing and surviving." While the scientists say it is difficult to pinpoint climate breakdown as the sole cause of the shapeshifting, it is what the instances studied have in common across geographical regions and across a diverse array of species. Examples include several species of Australian parrot that have shown a 4-10% increase in bill size since 1871, positively correlated with the summer temperature each year.

Athletes don't get advance warning of drug tests. Police don't share schedules of planned raids. Yet America's Environmental Protection Agency (EPA) does not seem convinced of the value of surprise in deterring bad behaviour [the link may be paywalled]. From a report: Every year it publishes a list of dates, spaced at six-day intervals, on which it will require state and local agencies to provide data on concentrations of harmful fine particulate matter (PM2.5), such as soot or cement dust. In theory, such a policy should enable polluters to spew as much filth into the air as they like 83% of the time, and clean up their act every sixth day. However, this ill-advised approach does offer one silver lining: it lets economists measure how much businesses change their behaviour when the proverbial parents are out of town.

A new paper by Eric Zou of the University of Oregon makes use of satellite images to spy on polluters at times when they think no one is watching. NASA, America's space agency, publishes data on the concentration of aerosol particles -- ranging from natural dust to man-made toxins -- all around the world, as seen from space. For every day in 2001-13, Mr Zou compiled these readings in the vicinity of each of America's 1,200 air-monitoring sites. Although some stations provided data continuously, 30-50% of them sent reports only once every six days. For these sites, Mr Zou studied how aerosol levels varied based on whether data would be reported. Sure enough, the air was consistently cleaner in these areas on monitoring days than it was the rest of the time, by a margin of 1.6%. Reporting schedules were almost certainly the cause: in areas where stations were retired, average pollution levels on monitoring days promptly rose to match the readings on non-monitoring days.

MIT's Technology Review reports on "Silicon Valley's latest wild bet on living forever," the newly-formed Altos Labs which it describes as "an ambitious new anti-aging company...

"Altos is pursuing biological reprogramming technology, a way to rejuvenate cells in the lab that some scientists think could be extended to revitalize entire animal bodies, ultimately prolonging human life." The new company, incorporated in the US and in the UK earlier this year, will establish several institutes in places including the Bay Area, San Diego, Cambridge, UK and Japan, and is recruiting a large cadre of university scientists with lavish salaries and the promise that they can pursue unfettered blue-sky research on how cells age and how to reverse that process.

Some people briefed by the company have been told that its investors include Jeff Bezos...

Among the scientists said to be joining Altos are Juan Carlos Izpisúa Belmonte, a Spanish biologist at the Salk Institute, in La Jolla, California, who has won notoriety for research mixing human and monkey embryos and who has predicted that human lifespans could be increased by 50 years. Salk declined to comment.
The article points out that a securities disclosure filed in California "indicates the company has raised at least $270 million, according to Will Gornall, a business school professor at the University of British Columbia who reviewed the document."

America's poison control centers are getting more calls this year from people who tried self-medicating with ivermectin, NPR reports — with at least 592 calls coming since July 1: According to the National Poison Data System, which collects information from the nation's 55 poison control centers, there was a 245% jump in reported exposure cases from July to August — from 133 to 459. Meanwhile, emergency rooms across the country are treating more patients who have taken the drug... Most patients are overdosing on a [high-concentration] version of the drug that is formulated to treat parasites in cows and horses... The National Poison Data System says 1,143 ivermectin exposure cases were reported between Jan. 1 and Aug. 31. That marks an increase of 163% over the same period last year...

Minnesota's Poison Control System is dealing with the same problem. According to the department, only one ivermectin exposure case was reported in July, but in August, the figure jumped to nine. Kentucky has seen similar increases. Thirteen misuse calls have been reported this year, Ashley Webb, director of the Kentucky Poison Control Center, told the Louisville Courier-Journal. "Of the calls, 75% were from people who bought ivermectin from a feed store or farm supply store and treated themselves with the animal product," Webb said. The other 25% were people who had a prescription, she added.

"You are not a horse. You are not a cow. Seriously, y'all. Stop it," the FDA said in a renewed warning late last month.

Those with a prescription from a health care provider should only fill it "through a legitimate source such as a pharmacy, and take it exactly as prescribed," the agency instructs. It also cautioned that large doses of the drug are "dangerous and can cause serious harm" and said that doses of ivermectin produced for animals could contain ingredients harmful to humans. The agency added: "Even the levels of ivermectin for approved human uses can interact with other medications, like blood-thinners. You can also overdose on ivermectin, which can cause nausea, vomiting, diarrhea, hypotension (low blood pressure), allergic reactions (itching and hives), dizziness, ataxia (problems with balance), seizures, coma and even death."
At least two more states — Louisiana and Washington — have also "issued alerts after an uptick in calls to poison control centers," according to a health writer for the Associated Press: By mid-August U.S. pharmacies were filling 88,000 weekly prescriptions for the medication, a 24-fold increase from pre-COVID levels, according to the Centers for Disease Control and Prevention.

Meanwhile, U.S. poison control centers have seen a five-fold increase in emergency calls related to the drug, with some incidents requiring hospitalization.

"A mystery lies deep within the Grand Canyon: one billion years' worth of rocks have disappeared," Space.com reported last week.

The BBC explains: Today geologists know that the youngest of the hard, crystalline rocks are 1.7 billion years old, whereas the oldest in the sandstone layer were formed 550 million years ago. This means there's more than a billion-year-gap in the geological record. To this day, no one knows what happened to the rocks in between.

While the missing rock is particularly obvious in the Grand Canyon, the phenomenon is ubiquitous. "It's one of these features that pretty much occurs under a lot of people's feet, when they don't even realise it," says Stephen Marshak, professor emeritus in the Department of Geology at the University of Illinois. He explains that in the centre of any continent, whether you're in the United States, Siberia or Europe, if you drill down far enough you'll hit the two layers of rock involved in this mysterious geological anomaly....

[F]inding out what happened during, and led to, the missing billion years is no trivial matter. There are two reasons for this. The first is that it just so happens to have occurred immediately before another inexplicable event — the sudden proliferation in the diversity of life on Earth 541 million years ago. The Cambrian explosion refers to an era when the oceans suddenly shifted from hosting a scattering of weird and unfamiliar creatures — such as triffid-like leaf-shaped animals and giant steamrollered ovals which continue to defy all efforts to categorise them — to an abundance of life, with many of the major taxonomic groups around today. It happened in the space of just 13-25 million years — an evolutionary twinkling of an eye...

The second is that it's thought Earth underwent radical climate change during the lost years — possibly turning into a giant ball of ice, with an almost entirely frozen surface. Very little is currently known about how this "snowball Earth" formed, or how life managed to cling on.
They share the three good theories. First, "snowball" — the earth develops a global ice sheet, with the speedy glaciers wearing away surface rocks.

The second theory is that it was all lost during the erosion of the supercontinent Rodinia.

And theory #3 is: confusion. The BBC cites new research that "suggests that the epic interruption in the geological record was not a single, discrete phenomenon — but instead is actually at least two mini-gaps, which look like one big one because they occurred at around the same time." Even the missing rocks on the two sides of America's Grand Canyon "may instead have vanished in several separate events over the course of several hundred million years."

"The four astronauts poised to launch on the first-ever all-civilian SpaceX mission this month will have one heck of a view once they reach orbit," reports Space.com: When the crew of Inspiration4 (as the mission is called) launches on a SpaceX Crew Dragon spacecraft on Sept. 15, their capsule will carry a huge glass dome in place of a docking port to offer the ultimate window on the world. Now, we have a clear idea of what that view may be like. "A look at Dragon's Cupola, which will provide our Inspiration4 astronauts with incredible views of Earth from orbit!" the Inspiration4 team wrote on Twitter Tuesday (Sept. 1) while sharing images of crewmembers trying out the dome window....

SpaceX's new cupola for its Crew Dragon spacecraft was first unveiled in March, when the full crew was revealed for the Inspiration4 mission. At the time, SpaceX CEO Elon Musk touted the window's 360-degree views of space as something that will be truly out of this world. Dragon does have other windows astronauts can use, but they are smaller and lie flat along the capsule's sides. "Probably most 'in space' you could possibly feel by being in a glass dome," SpaceX founder Musk wrote on Twitter during the announcement.

Inspiration4 is an all-civilian flight financed by the billionaire entrepreneur Jared Isaacman, who is commanding the mission, with geoscientist and science communicator Sian Proctor as pilot. Hayley Arceneaux, a childhood bone cancer survivor and St. Jude physician's assistant, and data engineer Chris Sembroski round out the crew as mission specialists. Proctor and Sembroski were selected as part of a global contest for a trip on the flight, which will last about three days.

NBC News reports: Space company Firefly launched its inaugural Alpha rocket on a cloudless Thursday evening over the California coast. The Alpha rocket took off from Vandenberg Space Force Base's SLC-2 complex, climbing west over the Pacific. But about two and a half minutes after launch, Firefly's rocket began flipping end over end and exploded in the air.

The Vandenberg's Space Launch Delta 30 unit confirmed that it triggered the Alpha rocket's flight termination system, causing the explosion. "A team of investigators will convene to determine the cause of the failure," Space Launch Delta 30 said...

A Firefly statement emphasized that its Alpha test flight achieved "a number of" mission objectives, including: booster ignition, liftoff and supersonic speed, and collected "a substantial amount of flight data."

Long-time Slashdot reader Artem S. Tashkinov quotes Quanta magazine: Today, the most powerful artificial intelligence systems employ a type of machine learning called deep learning. Their algorithms learn by processing massive amounts of data through hidden layers of interconnected nodes, referred to as deep neural networks. As their name suggests, deep neural networks were inspired by the real neural networks in the brain, with the nodes modeled after real neurons — or, at least, after what neuroscientists knew about neurons back in the 1950s, when an influential neuron model called the perceptron was born. Since then, our understanding of the computational complexity of single neurons has dramatically expanded, so biological neurons are known to be more complex than artificial ones. But by how much?

To find out, David Beniaguev, Idan Segev and Michael London, all at the Hebrew University of Jerusalem, trained an artificial deep neural network to mimic the computations of a simulated biological neuron. They showed that a deep neural network requires between five and eight layers of interconnected "neurons" to represent the complexity of one single biological neuron. Even the authors did not anticipate such complexity. "I thought it would be simpler and smaller," said Beniaguev. He expected that three or four layers would be enough to capture the computations performed within the cell.

Timothy Lillicrap, who designs decision-making algorithms at the Google-owned AI company DeepMind, said the new result suggests that it might be necessary to rethink the old tradition of loosely comparing a neuron in the brain to a neuron in the context of machine learning.
The paper's authors are now calling for changes in state-of-the-art deep network architecture in AI "to make it closer to how the brain works."

Misophonia is the "hatred of sound," or "sound rage," a condition in which people have intense emotional and physical reactions to trigger noises, often chewing or lip smacking. Misokinesia, on the other hand, is the "hatred of movement." Last week, Todd Handy, a professor of psychology at the University of British Columbia, and his colleagues published the first study to focus solely on misokinesia in Nature Scientific Reports, with first author PhD student Sumeet Jaswall. Motherboard's Shayla Love reports the findings: The paper is mostly focused on determining how common misokinesia might be -- and their findings remarkably resemble the impromptu surveys Handy did on his classes. In a total of over 4,000 people, one-third said they were sensitive to watching others fidget, and that it caused negative emotions like anger, anxiety, and frustration to arise. Arjan Schroder, a postdoctoral researcher at Amsterdam UMC and the first author on the 2013 paper that coined misokinesia, said this prevalence matched what he has seen in his misophonia patient samples. Yet, as Handy's work shows, misokinesia might also be quite common in general populations too.

Handy and his colleagues first asked a group of students whether they ever had "strong negative feelings, thoughts, or physical reactions when seeing or viewing other peoples' fidgeting or repetitive movements," like someone's foot shaking, fingers tapping, or gum chewing. 38% of the students responded yes, and 31% reported having both misokinesia (visual) and misophonia (audio) sensitivity. Then they asked an older, more demographically diverse sample (not students) and found a similar prevalence: 36% of participants reported they had misokinesia sensitivity and 25.5% reported having both misokinesia and misophonia.

It's an intriguing finding that misokinesia and misophonia seem to exist both together and in isolation. On the subreddit for misophonia, one person shared that noises didn't bother them severely but fidgeting did. [...] Handy thinks the next big questions their study poses are how exactly misokinesia is related to misophonia, whether it can help better explain the mechanisms of misophonia, and whether it can potentially lead to coping strategies and treatments.