Hot on the heels of its lunar landing success, India is readying to blast a probe even deeper into space to study the sun. From a report: The country's first solar observation mission, named Aditya-L1, is set to be launched from India's main spaceport on Sriharikota, an island off the southern state of Andhra Pradesh, at 11:50 a.m. local time on Saturday. The spacecraft is scheduled to spend 125 days traveling 1.5 million kilometers (932,000 miles) to its destination, a point in space where objects stay put and consume less fuel.

While arriving there would be an impressive achievement for ISRO, the Indian space agency, Aditya-L1 would have gone just a fraction of the 150 million km between Earth and the sun. For ISRO, success would be another major feat after India became the first country to land a spacecraft close to the lunar south pole in August. India has more ambitious projects in the works. A human spaceflight program aims to launch astronauts into orbit for the first time possibly by 2025, ISRO Chairman S Somanath said in an interview with news agency Asian News International. ISRO and NASA plan to cooperate on sending astronauts to the International Space Station and India is in discussions with Japan to work together on a mission.

Physicists have observed neutrinos originating "from the sun, cosmic rays, supernovae and other cosmic objects, as well as particle accelerators and nuclear reactors," writes Phys.org. But one remaining goal was observing neutrinos inside "collider" particle accelerators (which direct two particle beams).

It's now been accomplished using neutrino detectors located at CERN's Large Hadron Collider (LHC) in Switzerland by two distinct research collaborations:

- FASER (Forward Search Experiment)
- SND (Scattering and Neutrino Detector)@LHC

Phys.org argues the two achievements "could open important new avenues for experimental particle physics research. " The results of their two studies were recently published in Physical Review Letters. "Neutrinos are produced very abundantly in proton colliders such as the LHC," Cristovao Vilela, part of the SND@LHC Collaboration, told Phys.org. "However, up to now, these neutrinos had never been directly observed. The very weak interaction of neutrinos with other particles makes their detection very challenging and because of this they are the least well studied particles in the Standard Model of particle physics...."

"Particle colliders have existed for over 50 years, and have detected every known particle except for neutrinos," Jonathan Lee Feng, co-spokesperson of the FASER Collaboration, told Phys.org. "At the same time, every time neutrinos have been discovered from a new source, whether it is a nuclear reactor, the sun, the Earth, or supernovae, we have learned something extremely important about the universe. As part of our recent work, we set out to detect neutrinos produced at a particle collider for the first time...

"Because these neutrinos have high fluxes and high energies, which makes them far more likely to interact, we were able to detect 153 of them with a very small, inexpensive detector that was built in a very short time," Feng explained. "Previously, particle physics was thought to be divided into two parts: high energy experiments, which were required to study heavy particles, like top quarks and Higgs bosons, and high intensity experiments, which were required to study neutrinos. This work has shown that high energy experiments can also study neutrinos, and so has brought together the high-energy and high-intensity frontiers."

The neutrinos detected by Feng and the rest of the FASER collaboration have the highest energy ever recorded in a laboratory environment.... Cristovao Vilela, part of the SND@LHC Collaboration, said "The observation of collider neutrinos opens the door to novel measurements which will help us understand some of the more fundamental puzzles of the Standard Model of particle physics, such as why there are three generations of matter particles (fermions) that seem to be exact copies of each other in all aspects except for their mass. Furthermore, our detector is placed in a location which is a blind spot for the larger LHC experiments. Because of this, our measurements will also contribute to a better understanding of the structure of colliding protons."

Long-time Slashdot reader SonicSpike shares a new perspective on sunspots (those dark, cool areas where the sun's magnetic field is particularly strong, and which often launch solar flares).

"NASA's Perseverance Mars rover has given us a sneak peek of an intriguing patch of the sun that's not yet visible from Earth," reports Space.com: Perseverance photographs the sun daily with its Mastcam-Z camera system to gauge the amount of dust in the Martian atmosphere. Such an effort captured a big sunspot moving across the solar disk late last week and over the weekend, as SpaceWeather.com reported. "Because Mars is orbiting over the far side of the sun, Perseverance can see approaching sunspots more than a week before we do," SpaceWeather.com wrote in a post highlighting the sunspot photos. "Consider this your one-week warning: A big sunspot is coming...."

Solar flares and coronal mass ejections that hit Earth can affect satellite navigation and disrupt power grids, among other things, so tracking the movement of sunspots is more than just of academic interest.

Under a new initiative, named Bandwagon, SpaceX is expanding its rideshare program to cater to the demand for launches to mid-inclination orbits. TechCrunch reports: Orbital inclination refers to what part of the Earth is visible to a satellite as it rotates around the planet. A satellite in an equatorial orbit is at 0 degrees inclination; a satellite in a sun-synchronous orbit (SSO) is slightly higher than 90 degrees; and a mid-inclination orbit is around 45 degrees. Currently, SpaceX offers rideshare services on the Falcon 9 rocket to SSO through the Transporter program, which is in notoriously high demand. But mid-inclination orbits (MIOs) are appealing to a growing number of customers, especially to remote sensing companies that want to strengthen their coverage over areas like parts of Asia and the Middle East. Right now, companies must often purchase a dedicated launch from Rocket Lab if they want to position a satellite in MIO.

With the new rideshare program, called Bandwagon, SpaceX is going after this slice of the market. According to SpaceX's website, it currently has two Bandwagon missions booked for 2024 and two for 2025. If they become even close to the popularity of the Rideshare program, they could be a major threat to all other small launch providers: According to Jarrod McLachlan, director of rideshare sales at SpaceX, who spoke at the industry conference, SpaceX has delivered 682 spacecraft to orbit to date via rideshare missions.

Facing a rapidly aging population and land scarcity, the Chinese capital is piloting burial spaces with electronic screens instead of headstones. From a report: When someone dies in Beijing, the body is typically cremated and the ashes are buried behind a gravestone in one of the city's public cemeteries. Family and friends gather at the site to light candles and burn incense to pay their respects. Zhang Yin, a local resident in her 40s, chose a very different burial rite when her grandmother died earlier this year: She had her ashes stored in a compartment of a large room at Beijing's Taiziyu Cemetery, almost like a safe deposit box at a bank. An electronic screen on the door of the compartment displaying pictures and videos of the deceased replaces the traditional headstone. It's a land-saving option that's also more affordable and dovetails with the growing trend of Chinese families wanting more personalized funerals for their loved ones.

"Traditional cemeteries are outdoors, exposed to the wind and sun," Zhang says. "If you bring your kids there, they will only see bare graves, which has no meaning to them. For digital cemeteries, families can watch the photo display of deceased relatives together in a hall." Zhang says her grandfather gave his approval for the digital funeral because he's very receptive to new things -- and, by coincidence, the niche storing her grandmother's ashes is the same as the number of her grandmother's old house. Both local governments and funeral companies in China are experimenting with new ways of conducting burial rites as the country confronts urban land scarcity and a rapidly aging population.

"Earlier this year, after 15 years of searching, scientists finally heard the background hum of low-frequency gravitational waves that fill our universe," writes Space.com.

"Now, the hard work of searching for the source of these ripples in spacetime can begin." Currently, the primary suspects in this case are pairings of supermassive black holes with masses millions, or even billions, of times that of the sun. However, that doesn't mean that there isn't room for a few unusual suspects, which could potentially point us toward new physics....

[G]ravitational waves detected by the Laser Interferometer Gravitational-Wave Observatory (LIGO) express wavelengths that are thousands of miles (or km) in length and hold frequencies of milliseconds to seconds. The new gravitational waves detected by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), by contrast, have wavelengths on a scale of trillions of miles (or km). This is similar to the distance between the sun and its neighboring star, Proxima Centauri, a staggering 20 light-years in length. Plus, NANOGrav gravitational wavelengths have frequencies on scales of years instead of mere seconds. Practically, what this means is scientists need to build over 15 years of NANOGrav data to confirm a low-frequency gravitational wave detection.

But, when it happens, it's worth the wait. That's because these results have the capacity to point us toward new information about our universe... "The detection of low-frequency gravitational waves means they're from very different sources to the LIGO and Virgo sources, which are stellar mass black holes and neutron star mergers," Scott Ransom, a National Radio Astronomy Observatory astronomer and former chair of NANOGrav, told Space.com... Ransom is part of a collaboration of researchers that believe low-frequency gravitational waves, including those detected by NANOGrav, may originate from a pretty incredible source. They could come from, the team argues, hundreds of thousands of supermassive black hole pairings that, over the 13.8-billion-year course of cosmic history, came close enough together that they've merged...

"For many decades, theorists have hypothesized that supermassive black hole binaries should produce a signal with characteristics just like what NANOGrav and other pulsar timing arrays are seeing," Luke Zoltan Kelly, a Northwestern University theoretical astrophysicist and NANOGrav researcher, told Space.com. "For most of the community, supermassive black hole binaries are a natural best guess for what's producing the gravitational wave background...." Zoltan Kelley pointed out to Space.com that besides binaries, there are a number of new models in cosmology and in particle physics that, under the right circumstances, could also produce a similar gravitational wave background to that detected by NANOGrav. For example, axion or 'fuzzy' dark matter, cosmic strings, inflationary phase transitions, and many others," the Northwestern astrophysicist said.

"What's really exciting about these possibilities is that each of these models is an attempt to explain some of the biggest current mysteries of our universe."

An anonymous reader quotes a report from New Atlas: Scientists have discovered that the Sun produces higher energy light than was thought possible. An unusual type of telescope detected gamma rays with energies of over 1 tera electron volt (TeV), at least five times more energetic than previously known. The Sun emits light spanning a wide range of energies, from infrared through visible light and up to ultraviolet. It was previously predicted that the Sun could produce gamma rays -- electromagnetic radiation with the highest energy -- through interactions with cosmic rays from distant sources, but these would rarely reach Earth to be detectable. A few decades later, these gamma rays were eventually detected by NASA's Fermi Gamma-ray Space Telescope in 2011. With more and more observations over the years since, Fermi found that the Sun was producing around seven times more gamma rays than had been predicted. Their energies were detected at up to 200 giga electron volts (GeV), which is the upper limit that Fermi can pick up.

So for the new study, scientists used a different instrument that's sensitive beyond that limit. The instrument in question is called the High-Altitude Water Cherenkov Observatory (HAWC), and it works in a way unlike your everyday telescope. It's made up of a series of 300 big tanks filled with 200 tons of water each. When gamma rays hit molecules in the Earth's atmosphere, they create a cascade of lower energy particles, and these can interact with the water molecules in those big tanks. Sensitive instruments keep watch for these interactions, and scientists can work backwards to calculate the energy of the original gamma ray. Using HAWC data gathered between 2015 and 2021, the researchers discovered that the Sun was producing gamma rays with energies well beyond that which Fermi detected. They were reaching energies on the scale of TeV, with some spiking to almost 10 TeV. Exactly how the Sun produces them remains a mystery, the team says, but further research will investigate how their energy gets so high and what role the Sun's magnetic field might play. The research was published in the journal Physical Review Letters.

A ban on most kinds of traditional bulbs renews a cultural squabble between regulatory efforts to curb energy consumption and the very American impulse to do whatever one wants in one's domicile. The New York Times: The switchboard at Lightbulbs.com, a (pretty self-explanatory) e-commerce website, lit up with panicked callers on Tuesday, who all wanted to know if the news was true. Had the government just banned the sale of incandescent bulbs? Yes, mostly. Was this decision part of an elaborate political plot? No, mostly. Just what were fans of incandescent lighting supposed to do now? EBay, maybe?

Much like its cousin, the gas stove, the humble light bulb has become a flashpoint in a cultural squabble between environmental regulatory efforts and the very American impulse to do whatever one wants in one's domicile. But unlike the gas stove debate, which grew so heated (sorry) that it drew legislation from Republicans hoping to protect the noble but possibly dangerous appliance, the ban on the sale of most incandescent bulbs went quietly into effect on August 1. (The Biden administration denied trying to ban gas stoves.)

The response to the bulb ban was more of a whimper than a battle cry. "Thomas Edison brought the incandescent light bulb to the masses, and in 2023 Joe Biden banned it in America," officials with the Republican Party of New Mexico wrote in a tweet. "The Biden administration's government overreach continues." Other critics were more concerned about the quality of light affecting their quality of life: "I often stay up late at my desk, and the warm glow of the lamp is like company as I read and write. Ugh. There are people in power who are dedicated to sucking all joy out of the world," Joseph Massey, a self-described "not woke" writer, tweeted.

The world just broke "another terrifying climate record," reports CNN: Antarctic sea ice has fallen to unprecedented lows for this time of year. Every year, Antarctic sea ice shrinks to its lowest levels towards the end of February, during the continent's summer. The sea ice then builds back up over the winter.

But this year scientists have observed something different.

The sea ice has not returned to anywhere near expected levels. In fact it is at the lowest levels for this time of year since records began 45 years ago. The ice is around 1.6 million square kilometers (0.6 million square miles) below the previous winter record low set in 2022, according to data from the National Snow and Ice Data Center (NSIDC). In mid-July, Antarctica's sea ice was 2.6 million square kilometers (1 million square miles) below the 1981 to 2010 average. That is an area nearly as large as Argentina or the combined areas of Texas, California, New Mexico, Arizona, Nevada, Utah, and Colorado.

The phenomenon has been described by some scientists as off-the-charts exceptional — something that is so rare, the odds are that it only happens once in millions of years. But Ted Scambos, a glaciologist at the University of Colorado Boulder, said that speaking in these terms may not be that helpful. "The game has changed," he told CNN. "There's no sense talking about the odds of it happening the way the system used to be, it's clearly telling us that the system has changed...."

This winter's unprecedented occurrence may indicate a long-term change for the isolated continent, Scambos said. "It is more likely than not that we won't see the Antarctic system recover the way it did, say, 15 years ago, for a very long period into the future, and possibly 'ever.'" Others are more cautious. "It's a large departure from average but we know that Antarctic sea ice exhibits large year to year variability," Julienne Stroeve, a senior scientist at the National Snow and Ice Data Center told CNN, adding "it's too early to say if this is the new normal or not."
The glaciologist describes the change as "so extreme that something radical has changed in the past two years, but especially this year, relative to all previous years going back at least 45 years." And CNN adds that meanwhile in the Arctic, "sea ice has been on a consistently downwards trajectory as the climate crisis accelerates."

Other possible consequences of the missing sea ice:

• Sea ice reflects sunlight back into space, CNN notes, so when it melts, it "exposes the darker ocean waters beneath which absorb the sun's energy."

• Sea ice floats on the water, so its loss doesn't directly affect rising sea levels, CNN points out. But the disappearance of sea ice does leave coastal ice sheets and glaciers "exposed to waves and warm ocean waters, making them more vulnerable to melting and breaking off."
  
  In February NASA reported that global sea levels "are rising as a result of human-caused global warming, with recent rates being unprecedented over the past 2,500-plus years." Seawater expands when it warms, but NASA also blames the added water from melting ice sheets and glaciers, resulting in a 3.89-inch rise since 1993, and 7.97 inches (200 mm) since 1900.

Astronomers have discovered a two-faced star and are baffled by its bizarre appearance. The Guardian reports: The white dwarf appears to have one side composed almost entirely of hydrogen and the other side made up of helium. It is the first time that astronomers have discovered a lone star that appears to have spontaneously developed two contrasting faces. The object, which is more than 1,000 light years away in the Cygnus constellation, has been nicknamed Janus, after the two-faced Roman god of transition, although its formal scientific name is ZTF J203349.8+322901.1. It was initially discovered by the Zwicky Transient Facility (ZTF), an instrument that scans the skies every night from Caltech's Palomar Observatory near San Diego.

"The surface of the white dwarf completely changes from one side to the other," said Dr Ilaria Caiazzo, an astrophysicist at Caltech who led the work. "When I show the observations to people, they are blown away." Caiazzo was searching for white dwarfs and one candidate star stood out due to its rapid changes in brightness. Further observations revealed that Janus was rotating on its axis every 15 minutes. Spectrometry measurements, which give the chemical fingerprints of a star, showed that one side of the object contained almost entirely hydrogen and the other almost entirely helium. If seen up close, both sides of the star would be bluish in colour and have a similar brightness, but the helium side would have a grainy, patchwork appearance like that of our own sun, while the hydrogen side would appear smooth. The findings are published in the journal Nature.

Bruce66423 shares a report from The Jerusalem Post: A team of researchers from Tel Aviv University has produced 'green' hydrogen -- hydrogen that is produced without polluting carbon dioxide emissions but is still highly efficient, the university said. The TAU team produced hydrogen using a water-based gel to attach the enzyme to the electrode and a biocatalyst. Over 90% of the electrons introduced into the system were deposited in the hydrogen without any secondary processes.

"Hydrogen is very rare in the atmosphere, although it is produced by enzymes in microscopic organisms, which receive the energy from photosynthesis processes," explained Itzhak Grinberg, a doctoral student who helped lead the project. "In the lab, we 'electrify' those enzymes. That is, an electrode provides the energy instead of the Sun." However, the challenge is that the enzyme generally "runs away" from the electric charge when making hydrogen in a lab. The hydrogel holds the enzyme in place. "The material of the gel itself is known, but our innovation is to use it to produce hydrogen," said Prof. Iftach Yacoby of TAU's School of Plant Sciences and Food Security, who oversaw the project. "We soaked the electrode in the gel, which contained an enzyme for producing hydrogen called hydrogenase. The gel holds the enzyme for a long time, even under the electric voltage, and makes it possible to produce hydrogen with great efficiency and at environmental conditions favorable to the enzyme -- for example, in salt water, in contrast to electrolysis, which requires distilled water."

The team also tested the gel with two other enzymes and proved that the hydrogenase could attach different enzymes to the electrode. "Today, 'green' hydrogen is produced primarily through electrolysis, which requires precious and rare metals such as platinum along with water distillation, which makes the green hydrogen up to 15 times more expensive than the polluting 'grey' one," said doctoral student Oren Ben-Zvi, who co-led the experiment. Therefore, the hope is that in the future, TAU's method could be commercially implemented to lower the cost of green hydrogen production and hence enable its use in more industries and agriculture, thereby reducing CO2 emissions and making the planet healthier. Their research was published in the journal Carbon Energy.

An anonymous reader quotes a report from Electrek: Tesla has officially launched its new 'Charge on Solar' feature to let its electric car owners charge their vehicles with sunshine. Tesla describes the feature: "With Charge on Solar, your Tesla vehicle can charge using only excess solar energy produced by your Tesla solar system. Using excess energy to charge your electric vehicle maximizes the value of your home's solar system. Use the Tesla app to set Charge on Solar limits and have your vehicle charge using extra solar energy."

If you have all the required hardware and software, you can go to your Tesla app, and under "Charge on Solar," you will be able to set your charge limit using excess solar energy. Tesla writes about the charge limit: "Your vehicle will charge from solar and the grid when your current charge level is below the left sun slider. After your vehicle's charge level passes the sun slider, your vehicle automatically switches to only charge on excess solar up to your charge limit. Solar power and home loads are variables so if you ever want to charge faster, you can simply increase the lower charge limit to a desired range." There's also a scheduling feature that stops charging with solar after a specific time if you know that your energy consumption will increase at a specific time.

Disney CEO Bob Iger is citing the studio's output increase for Disney+ as one reason for "some disappointments" as of late. From a report: Speaking to CNBC's David Faber at the Sun Valley Conference, Iger admitted the studio screwed with audience expectations by offering up so much streaming content. The negative impact of that has been commercial disappointments in theaters, be it "Ant-Man and the Wasp: Quantumania" not even reaching $500 million worldwide or disappointing openings for summer tentpoles "Elemental" and "Indiana Jones and the Dial of Destiny."

"There have been some disappointments. We would have liked some of our more recent releases to perform better," Iger said. "It's reflective not as a problem from a personnel perspective, but I think in our zeal to basically grow our content significantly to serve mostly our streaming offerings, we ended up taxing our people way beyond -- in terms of their time and their focus -- way beyond where they had been. Marvel's a great example of that. They had not been in the TV business at any significant level. Not only did they increase their movie output, but they ended up making a number of television series, and frankly, it diluted focus and attention. That is, I think, more of the cause than anything."

"The James Webb Space Telescope has delivered yet another astounding discovery," reports CNN, "spying an active supermassive black hole deeper into the universe than has ever been recorded." The black hole lies within CEERS 1019 — an extremely old galaxy likely formed 570 million years after the big bang — making it more than 13 billion years old. And scientists were perplexed to find just how small the celestial object's central black hole measures. "This black hole clocks in at about 9 million solar masses," according to a NASA news release. A solar mass is a unit equivalent to the mass of the sun in our home solar system — which is about 333,000 times larger than the Earth. That's "far less than other black holes that also existed in the early universe and were detected by other telescopes," according to NASA. "Those behemoths typically contain more than 1 billion times the mass of the Sun — and they are easier to detect because they are much brighter."

The ability to bring such a dim, distant black hole into focus is a key feature of the Webb telescope, which uses highly sensitive instruments to detect otherwise invisible light...

The relative smallness of the black hole at CEER 1019's center is a mystery for scientists. It's not yet clear how such a small black hole formed in the early days of the universe, which was known to produce much larger gravity wells.
NASA's announcement emphasized the power of the James Webb Space Telescope. "Not only could the team untangle which emissions in the spectrum are from the black hole and which are from its host galaxy, they could also pinpoint how much gas the black hole is ingesting and determine its galaxy's star-formation rate."

The survey also recorded evidence of eleven new galaxies — which are still "churning out new stars," according to NASA. A member of the team says these new galaxies, "along with other distant galaxies we may identify in the future, might change our understanding of star formation and galaxy evolution throughout cosmic history."

Researchers have discovered that samples of the Ryugu asteroid gathered in 2019 contain grains of stardust. NPR reports: The dust, which came from distant stars and drifted through space for millions or billions of years, could provide clues about how the solar system formed, according to Ann Nguyen, a cosmochemist at NASA's Johnson Space Center in Houston, Texas. Stars forged nearly all of the elements of the Universe. Many of the atoms that make up our bodies were themselves made inside of the core of a star somewhere else. That's because the high pressures and temperatures can fuse lightweight atomic nuclei into heavier elements. "The core is extremely hot, and then you go out in the atmosphere, it's cool enough so that gas can form and aggregate into tiny grains," Nguyen says.

Think of these little grains as cosmic dust motes. Sometimes the star that formed these grains would explode, blowing them across the galaxy like dandelion seeds. Other times they would drift away on their own -- traveling on the stellar wind into deep space. "Probably a lot of them do get destroyed," Nguyen says, "but some of them survive and they make it to our region of the universe where our solar system formed." The stardust swirled and clumped and eventually became part of the sun, and the planets, and even us. That idea led the astronomer Carl Sagan to famously remark that "We're made of star-stuff." [...]

Nguyen says the grains look different than the material from our own solar system, because different stars leave different nuclear signatures in the atoms. "It kind of lights up like a Christmas tree light," she says. "Their isotopic signatures are just so different than the material that formed in our solar system or got homogenized in the solar system." Nguyen says that the stardust grains provide some clues about the types of stars that contributed to our solar system. It also shows that exploding stars, or supernovae, probably contributed more of the dust than researchers had previously believed. But above all, she says, these tiny grains are a reminder of the way in which we fit into the vast cosmos. "It just shows us how rich our Universe is," she says. "These materials all played a part in our life here on Earth." The researchers published their findings in the journal Science Advances.

U.S. regulators will soon decide on a petition filed by General Motors' Cruise self-driving technology unit seeking permission to deploy up to 2,500 self-driving vehicles annually without human controls, a top auto safety official said on Wednesday. From a report: The petition, filed in February 2022, seeks government approval to deploy vehicles annually without steering wheels, mirrors, turn signals or windshield wipers. National Highway Traffic Safety acting Administrator Ann Carlson said Wednesday the agency "will issue a decision "in the coming weeks."

"The central issue is deciding whether vehicles that are driven not by humans but by computers need to comply with safety standards that are fundamentally about human drivers: requirements for mirrors, sun visors, windshield wipers and so forth," Carlson said. Cruise currently offers a limited service in San Francisco with a small fleet of Chevrolet Bolt vehicles fitted with driverless technology. Cruise wants to deploy its Origin vehicle, which has subway-like doors and no steering wheels.

An anonymous reader quotes a report from Ars Technica: Two small spacecraft should have now been cruising through the Solar System on the way to study unexplored asteroids, but after several years of development and nearly $50 million in expenditures, NASA announced Tuesday the probes will remain locked inside a Lockheed Martin factory in Colorado. That's because the mission, called Janus, was supposed to launch last year as a piggyback payload on the same rocket with NASA's much larger Psyche spacecraft, which will fly to a 140-mile-wide (225-kilometer) metal-rich asteroid -- also named Psyche -- for more than two years of close-up observations. Problems with software testing on the Psyche spacecraft prompted NASA managers to delay the launch by more than a year. An independent review board set up to analyze the reasons for the Psyche launch delay identified issues with the spacecraft's software and weaknesses in the plan to test the software before Psyche's launch. Digging deeper, the review panel determined that NASA's Jet Propulsion Laboratory, which manages the Psyche mission, was encumbered by staffing and workforce problems exacerbated by the COVID-19 pandemic. Psyche is now back on track for liftoff in October on a SpaceX Falcon Heavy rocket, but Janus won't be aboard.

Janus was designed to fly to two binary asteroids -- consisting of two bodies near one another -- that orbit the Sun closer to Earth than the metallic asteroid Psyche. While the Psyche mission can still reach its asteroid destination and accomplish its science mission with a launch this year, the asteroids targeted by Janus will have changed positions in the Solar System by too much since last year. They are no longer accessible to the two Janus spacecraft without flying too far from the Sun for their solar arrays to generate sufficient power. When it became clear the two Janus target asteroids were no longer reachable, scientists on the Janus team and NASA management agreed last year to remove the twin spacecraft from the Psyche launch. Scientists considered other uses for the suitcase-size Janus spacecraft, which were already built and were weeks away from shipment to Florida to begin final launch preparations when NASA decided to delay the launch of Psyche.

One of the ideas to repurpose the Janus spacecraft was to send the probes to fly by asteroid Apophis, a space rock bigger than the Empire State Building that will encroach within 20,000 miles (32,000 kilometers) from our planet's surface in 2029. For a time soon after its discovery in 2004, scientists said there was a small chance Apophis could impact Earth in 2029 or later this century, but astronomers have now ruled out any risk of a collision for the next 100-plus years. In the end, Janus fell victim to the delay of the Psyche mission and tight budget constraints at NASA. The agency said Tuesday it has directed the Janus team to "prepare the spacecraft for long-term storage."

Popular Science describes how NASA's Volatiles Investigating Polar Exploration Rover (VIPER) will use a pair of ramps to become the first rover to explore the Moon's south pole when it arrives in late 2024. From the report: "We all know how to work with ramps, and we just need to optimize it for the environment we're going to be in," says NASA's VIPER program manager Daniel Andrews. A VIPER test vehicle recently descended down a pair of metal ramps at NASA's Ames Research Center in California, as seen in the agency's recently published photos, with one beam for each set of the rover's wheels. Because the terrain where VIPER will land -- the edge of the massive Nobile Crater -- is expected to be rough, the engineering team has been testing VIPER's ability to descend the ramps at extreme angles. They have altered the steepness, as measured from the lander VIPER will descend from, and differences in elevation between the ramp for each wheel. "We have two ramps, not just for the left and right wheels, but a ramp set that goes out the back too," Andrews says. "So we actually get our pick of the litter, which one looks most safe and best to navigate as we're at that moment where we have to roll off the lander."

VIPER is a scientific successor to NASA's Lunar Crater Observation and Sensing Satellite, or LCROSS mission, which in 2009 confirmed the presence of water ice on the lunar south pole. "It completely rewrote the books on the moon with respect to water," says Andrews, who also worked on the LCROSS mission. "That really started the moon rush, commercially, and by state actors like NASA and other space agencies." The ice, if abundant, could be mined to create rocket propellant. It could also provide water for other purposes at long-term lunar habitats, which NASA plans to construct in the late 2020s as part of the Artemis moon program.

But LCROSS only confirmed that ice was definitely present in a single crater at the moon's south pole. VIPER, a mobile rover, will probe the distribution of water ice in greater detail. Drilling beneath the lunar surface is one task. Another is to move into steep, permanently shadowed regions -- entering craters that, due to their sharp geometry, and the low angle of the sun at the lunar poles, have not seen sunlight in billions of years. The tests demonstrate the rover can navigate a 15-degree slope with ease -- enough to explore these hidden dark spots, avoiding the need to make a machine designed for trickier descents. "We think there's plenty of scientifically relevant opportunities, without having to make a superheroic rover that can do crazy things," Andrews says.

Developed by NASA Ames and Pittsburgh-based company Astrobotic, VIPER is a square golf-cart-sized vehicle about 5 feet long and wide, and about 8 feet high. Unlike all of NASA's Mars rovers, VIPER has four wheels, not six. "A problem with six wheels is it creates kind of the equivalent of a track, and so you're forced to drive in a certain way," Andrews says. VIPER's four wheels are entirely independent from each other. Not only can they roll in any direction, they can be turned out, using the rover's shoulder-like joints to crawl out of the soft regolith of the kind scientists believe exists in permanently shadowed moon craters. The wheels themselves are very similar to those on the Mars rovers, but with more paddle-like treads, known as grousers, to carry the robot through fluffy regolith. [...] Together with Astrobotic, Andrews and his team have altered the ramps, and they now include specialized etchings down their lengths. The rover can detect this pattern along the rampway, using cameras in its wheel wells. "By just looking down there," the robot knows where it is, he says. "That's a new touch." Andrews is sure VIPER will be ready for deployment in 2024, however many tweaks are necessary. After all, this method is less complicated than a sky crane, he notes: "Ramps are pretty tried and true."

As an "ambassador" for FTX, football quarterback Tom Brady appeared at the company's conference in the Bahamas, and in TV commercials promoting the exchange as "the most trusted" institution in crypto, remembers the New York Times. And it was all about to go very bad...

"His money was also at stake. As part of an endorsement agreement Brady signed in 2021, FTX had paid him $30 million, a deal that consisted almost entirely of FTX stock, three people with knowledge of the contract said. Brady's wife at the time, supermodel Gisele Bündchen, was paid $18 million in FTX stock, one of the people said." Now FTX is bankrupt, and Bankman-Fried is facing criminal fraud charges. Brady, 45, and Bündchen, 42, have been sued by a group of FTX customers seeking compensation from the celebrities who endorsed the exchange. On top of it all, the terms of the deal would have required the former couple, who divorced last year, to pay taxes on at least some of their now worthless FTX stock, two people familiar with the endorsement deal said. Their situation is the highest-profile example of a humiliating reckoning facing the actors, athletes, and other celebrities who rushed to embrace the easy money and online hype of cryptocurrencies...

But last year's crash ended the celebrity crypto bonanza. In October, the Securities and Exchange Commission ordered Kim Kardashian to pay $1.26 million for failing to make adequate disclosures when she endorsed the EthereumMax crypto token. In December, a lawyer in California sued two crypto companies, MoonPay and Yuga Labs, accusing them of using a "vast network of A-list musicians, athletes and celebrity clients" to mislead investors about digital assets. In March, the S.E.C. charged the actress Lindsay Lohan, the online influencer Jake Paul and musicians including Soulja Boy and Lil Yachty with illegally promoting crypto assets. And in late May, after months of failed attempts, a process server delivered court papers to Shaquille O'Neal, the retired basketball star, who was sued for promoting FTX, according to legal filings. Mr. O'Neal was served while broadcasting from a National Basketball Association playoff game...

Brady has also faced legal trouble. In December, Adam Moskowitz and the law firm Boies Schiller Flexner filed a lawsuit in federal court in Florida accusing him and Bündchen of misleading investors. Among the other defendants are comedian Larry David, NBA star Steph Curry and tennis player Naomi Osaka, all of whom endorsed FTX. "None of these defendants performed any due diligence prior to marketing these FTX products to the public," the lawsuit said.

Nine days ago the U.S. government released a report on the advantages of studying "scientific and societal implications" of "solar radiation modification" (or SRM) to explore its possible "risks and benefits...as a component of climate policy."

The report's executive summary seems to concede the technique would "negate (explicitly offset) all current or future impacts of climate change" — but would also introduce "an additional change" to "the existing, complex climate system, with ramifications which are not now well understood." Or, as Politico puts it, "The White House cautiously endorsed the idea of studying how to block sunlight from hitting Earth's surface as a way to limit global warming in a congressionally mandated report that could help bring efforts once confined to science fiction into the realm of legitimate debate."

But again, the report endorsed the idea of studying it — to further understand the risks, and also help prepare for "possible deployment of SRM by other public or private actors." Politico emphasized how this report "added a degree of skepticism by noting that Congress has ordered the review, and the administration said it does not signal any new policy decisions related to a process that is sometimes referred to — or derided as — geoengineering." "Climate change is already having profound effects on the physical and natural world, and on human well-being, and these effects will only grow as greenhouse gas concentrations increase and warming continues," the report said. "Understanding these impacts is crucial to enable informed decisions around a possible role for SRM in addressing human hardships associated with climate change..."

The White House said that any potential research on solar radiation modification should be undertaken with "appropriate international cooperation."
It's not just the U.S. making official statements. Their report was released "the same week that European Union leaders opened the door to international discussions of solar radiation modification," according to Politico's report: Policymakers in the European Union have signaled a willingness to begin international discussions of whether and how humanity could limit heating from the sun. "Guided by the precautionary principle, the EU will support international efforts to assess comprehensively the risks and uncertainties of climate interventions, including solar radiation modification and promote discussions on a potential international framework for its governance, including research related aspects," the European Parliament and European Council said in a joint communication.
And it also "follows an open letter by more than 60 leading scientists calling for more research," reports Scientific American. They also note a new supercomputer helping climate scientists model the effects of injecting human-made, sun-blocking aerosols into the stratosphere: The machine, named Derecho, began operating this month at the National Center for Atmospheric Research (NCAR) and will allow scientists to run more detailed weather models for research on solar geoengineering, said Kristen Rasmussen, a climate scientist at Colorado State University who is studying how human-made aerosols, which can be used to deflect sunlight, could affect rainfall patterns... "To understand specific impacts on thunderstorms, we require the use of very high-resolution models that can be run for many, many years," Rasmussen said in an interview. "This faster supercomputer will enable more simulations at longer time frames and at higher resolution than we can currently support..."

The National Academies of Sciences, Engineering and Medicine released a report in 2021 urging scientists to study the impacts of geoengineering, which Rasmussen described as a last resort to address climate change.

"We need to be very cautious," she said. "I am not advocating in any way to move forward on any of these types of mitigation efforts. The best thing to do is to stop fossil fuel emissions as much as we can."