A sad announcement was posted online today, reports CNN: "Last night, my mother, Nichelle Nichols, succumbed to natural causes and passed away. Her light however, like the ancient galaxies now being seen for the first time, will remain for us and future generations to enjoy, learn from, and draw inspiration," Johnson said in a statement shared to Nichols' official site on Sunday. "Hers was a life well lived and as such a model for us all."

Nichols died from natural causes, he said...

George Takei, who portrayed the USS Enterprise's helmsman Hikaru Sulu, posted a touching tribute to his co-star.

"I shall have more to say about the trailblazing, incomparable Nichelle Nichols, who shared the bridge with us as Lt. Uhura of the USS Enterprise, and who passed today at age 89," wrote Takei on Twitter. "For today, my heart is heavy, my eyes shining like the stars you now rest among, my dearest friend."

"We lived long and prospered together," he added with a photo of the pair making the iconic Vulcan salute.
It was Nichols herself who came up with the name "Uhura" for her character, she revealed years in a 2010 interview. After the series Nichols authored the science fiction novels Saturn's Child and Saturna's Quest, as well as a memoir titled Beyond Uhura — Star Trek and Other Memories.

But Nichols also served on the board of directors of the National Space Society (a charity advocating for space advocacy) — and maintained ties to other real-world space agencies. "Nichols was always interested in space travel," according to a NASA web page. "She flew aboard the C-141 Astronomy Observatory, which analyzed the atmospheres of Mars and Saturn on an eight hour, high altitude mission." But in addition, "From the late 1970's until the late 1980's, NASA employed Nichelle Nichols to recruit new astronaut candidates" (including Dr. Sally Ride).

"Lunar scientists think they've found the hottest places on the Moon," reports Live Science, "as well as some 200 'Goldilocks' zones that are always near the average temperature in San Francisco."

Long-time Slashdot reader fahrbot-bot shared their report: The moon has wild temperature fluctuations, with parts of the moon heating up to 260 degrees Fahrenheit (127 degrees Celsius) during the day and dropping to minus 280 F (minus 173 C) at night. But the newly analyzed 200 shaded lunar pits are always always 63 F (17 C), meaning they're perfect for humans to shelter from the extreme temperatures. They could also shield astronauts from the dangers of the solar wind, micrometeorites and cosmic rays.

Some of those pits may lead to similarly warm caves. These partially-shaded pits and dark caves could be ideal for a lunar base, scientists say.

"Surviving the lunar night is incredibly difficult because it requires a lot of energy, but being in these pits and caves almost entirely removes that requirement," Tyler Horvath, a doctoral student in planetary science at the University of California, Los Angeles and lead author on the NASA-funded research published online July 8 in the journal Geophysical Research Letters, told Live Science.

The 25-ton core stage of a Long March 5B rocket "reentered Earth's atmosphere over the Indian Ocean this afternoon," reports Space.com, citing an announcement on Twitter from the U.S. Space Command. Mission managers didn't screw anything up; this end-of-life scenario is built into the Long March 5B's design, to the consternation of exploration advocates and much of the broader spaceflight community. This disposal strategy is reckless, critics say, given that the big rocket doesn't burn up completely upon reentry.

Indeed, 5.5 tons to 9.9 tons (5 to 9 metric tons) of the Long March 5B likely survived all the way to the ground today, experts with The Aerospace Corporation's Center for Orbital Reentry and Debris Studies have estimated. And it's possible that falling rocket chunks caused some injuries or infrastructure damage today, given where the Long March 5B reentered. One observer appeared to capture the rocket's breakup from Kuching, in the Malaysian state of Sarawak, for example, posting video of the dramatic event on Twitter. "The video from Kuching implies it was high in the atmosphere at that time — any debris would land hundreds of km further along track, near Sibu, Bintulu or even Brunei," astrophysicist and satellite tracker Jonathan McDowell, of the Harvard-Smithsonian Center for Astrophysics, said via Twitter today. It's "unlikely but not impossible" that one or more chunks hit a population center, he added in another tweet....

"What really should have happened is, there should have been some fuel left on board for this to be a controlled reentry," Darren McKnight, a senior technical fellow at the California-based tracking company LeoLabs, said Thursday (July 28) during a Long March 5B reentry discussion that The Aerospace Corporation livestreamed on Twitter. "That would be the responsible thing to do...."

This was the third uncontrolled fall for a Long March 5B core stage to date.
NASA Administrator Bill Nelson also released a critical statement today pointing out that China "did not share specific trajectory information as their Long March 5B rocket fell back to Earth." All spacefaring nations should follow established best practices, and do their part to share this type of information in advance to allow reliable predictions of potential debris impact risk, especially for heavy-lift vehicles, like the Long March 5B, which carry a significant risk of loss of life and property.

Newsweek reports that "A huge piece of space debris appears to have fallen from the sky and landed on a sheep farm in Australia." On July 9, locals across the Snowy Mountains in southern New South Wales heard a bang, ABC Australia reported. It was heard for miles, by those as far away as Albury, Wagga Wagga and Canberra.... Sheep farmer Mick Miners then came across a strange, charred object on his ranch, south of Jindabyne, on July 25. "I didn't know what to think, I had no idea what it was," Miners told ABC Australia.

He found the 10 foot chunk of metal wedged into the ground in a remote part of his sheep paddock.

He was not the only one. His neighbor, Jock Wallace also found some strange debris in the area. "I didn't hear the bang, but my daughters said it was very loud," Wallace told ABC. "I think it's a concern, it's just fallen out of the sky. If it landed on your house it would make a hell of a mess."

Serial numbers were noted on the charred, pieces of debris. Australian National University College of Science astrophysicist Brad Tucker told ABC News that the debris is likely from the trunk section of the SpaceX Dragon spacecraft. The spacecraft launched in 2020, and the debris may have fallen as it re-entered the Earth's atmosphere.

Tucker told ABC that is may have been the largest piece of space debris to fall in Australia for decades — the last time was in 1979, when NASA's Skylab space station fell in Western Australia.
Thanks to long-time Slashdot reader 192_kbps for sharing the article!

Nathaniel Scharping writes via Science Magazine: On 15 January, Tonga's Hunga Tonga-Hunga Ha'apai volcano erupted under the sea, rocking the South Pacific nation and sending tsunamis racing around the world. The eruption was the most powerful ever recorded, causing an atmospheric shock wave that circled the globe four times, and sending a plume of debris more than 50 kilometers into the atmosphere. But it didn't stop there. The ash and gasses punching into the sky also shot billions of kilograms of water into the atmosphere, a new study concludes. That water will likely remain there for years, where it could eat away at the ozone layer and perhaps even warm Earth.

In all, the plume shot approximately 146 billion kilograms of water into Earth's stratosphere, an arid layer of the atmosphere that begins several miles above sea level, the authors report this month in Geophysical Research Letters. That's equivalent to about 58,000 Olympic-size swimming pools, or about 10% of the entire water content of the stratosphere, [study co-author and JPL atmospheric scientist Luis Millan] says. Other volcanoes have added measurable amounts of water vapor to Earth's atmosphere, he says, but the scale this time was unprecedented. That's likely because of the eruption's magnitude and underwater location, he says. The water will probably remain in the stratosphere for half a decade or more, he says.

Big volcanic eruptions often cool the climate, because the sulfur dioxide they release forms compounds that reflect incoming sunlight. But with so much water vapor flung aloft, the Tonga eruption could have a different impact. Water absorbs incoming energy from the Sun, making it a potent greenhouse gas. And the sulfur dioxide will dissipate in just a few years whereas the water will likely stick around for at least 5 years -- and potentially longer Millan thinks. That could make Earth warmer for years and accelerate the warming from greenhouse gasses, [says Matthew Toohey, a physicist who focuses on climate modeling and the effects of volcanic eruptions at the University of Saskatchewan and was not involved with the work]. "We'll kind of just jump forward by a few years." But the actual effects on climate will likely take time to understand [...]. High above Earth, the water will likely react with other chemicals, potentially degrading the ozone layer that protects us from ultraviolet light, and even changing the circulation of air currents that govern weather patterns.

Russian space officials have informed U.S. counterparts that Moscow would like to keep flying its cosmonauts aboard the International Space Station (ISS) until their own orbital outpost is built and operational, a senior NASA official told Reuters on Wednesday. Reuters reports: Taken together with remarks from a senior Russian space official published on Wednesday, the latest indications are that Russia is still at least six years away from ending an orbital collaboration with the United States that dates back more than two decades.

A schism in the ISS program seemed to be closer at hand on Tuesday, when Yuri Borisov, the newly appointed director-general of Russia's space agency Roscosmos, surprised NASA by announcing that Moscow intended to withdraw from the space station partnership "after 2024." Kathy Lueders, NASA's space operations chief, said in an interview that Russian officials later on Tuesday told the U.S. space agency that Roscosmos wished to remain in the partnership as Russia works to get its planned orbital outpost, named ROSS, up and running. "We're not getting any indication at any working level that anything's changed," Lueders told Reuters on Wednesday, adding that NASA's relations with Roscosmos remain "business as usual."

NASA and the European Space Agency (ESA) hope to take custody of the samples Perseverance has been patiently collecting and return them safely to Earth, and they'll need the help of two more helicopters. IFLScience reports: NASA and the ESA are collaborating on putting a lander on Mars that is capable of taking off again and making a rendezvous with an orbiter which will then bring the cargo back to Earth. Rather than collect its own samples, the return mission will take over those collected by Perseverance, and the biggest change to the plans lies in how that transfer will occur. The project has not got funding yet but the space agencies are refining their plans. In a quest for the backing they need new details have been announced, along with a return date -- 2033 -- only slightly further off than 1969 was when Kennedy promised a Moon landing "before this decade is out."

Previously the Sample Return Lander was planned to carry a Sample Fetch Rover and its associated second lander. Instead, NASA and the ESA are now proposing to equip the lander with two helicopters based on the phenomenally successful Ingenuity. They will be able to traverse the gap between the Mars Ascent Vehicle and where Perseverance left them much more quickly and having two offers redundancy if one fails. There's also a possibility that Perseverance could deliver the samples directly to the Mars Ascent Vehicle if it is still operating when the ascent vehicle lands.

If everything goes to plan the Earth Return Orbiter and Sample Retrieval Lander will launch in 2027 and 2028 respectively. Although delays are common for space missions, the fact Ingenuity has continued to operate -- and even set records for its flights -- well beyond its anticipated mission time has increased the sample return team's optimism.

What if we glimpsed alien life for the first time by peering through a natural telescope made by the Sun's gravity? This wild idea, known as a solar gravitational lens (SGL) mission, may sound like an Einsteinian fever dream, but scientists have now found that it is "feasible with technologies that are either extant or in active development," according to a new study. Motherboard reports: Researchers led by Henry Helvajian, senior scientist in the Physical Sciences Laboratories at the nonprofit research center The Aerospace Corporation, have now shared the initial results of this ongoing NIAC study on the preprint server arxiv, which have not been peer-reviewed. Though the team cautioned that the mission would need to overcome several technical challenges, it could ultimately answer one of humanity's most fundamental questions: Are we alone in the universe?

"The SGL offers capabilities that are unmatched by any planned or conceivable optical instrument," according to the study, which was co-authored by Slava Turyshev, a scientist at NASA's Jet Propulsion Laboratory and principal investigator of the NIAC mission concept. "With its unique optical properties, the SGL can be used to obtain detailed, high resolution images of Earth-like exoplanets as far as 100 light years from Earth, with measurement durations lasting months, or at most a few years." "Of particular interest is the possibility of using the SGL to obtain images of high spatial and spectral resolution of a yet-to-be-identified, potentially life-bearing exoplanet in another solar system in our Galactic neighborhood," the researchers added. "The direct high-resolution images of an exoplanet obtained with the SGL could lead to insight on the on-going biological processes on the target exoplanet and find signs of habitability."

The focal point of the Sun's gravitational lens is located all the way out in interstellar space, some 550 and 900 times the distance that Earth orbits our star, which is much farther than any spacecraft has ventured beyond our planet. Helvajian and his colleagues envision their mission as consisting of a one-meter telescope that is accompanied by a sunshade and propelled by solar sails that produce thrust by capturing solar radiation, in a somewhat analogous fashion to wind-propelled sails. Even if they were able to overcome the technical hurdles involved with this concept -- which include the development of more reliable solar sails and long-duration navigation and communications systems -- the team estimated that it would take at least 25 to 30 years for a spacecraft to reach this far-flung location, in the best case scenario. That said, if a telescope were able to spot alien life, arguably the biggest breakthrough in science, it would be well worth the long wait.

Russia has announced that it will officially end its international collaboration with NASA around operation of the International Space Station (ISS) as of 2024, according to the AP. From a report: Roscosmos, the Russian space agency, also announced plans to construct its own orbital station, which build and operate independently of the U.S. The ISS was originally intended to be decommissioned sometime around 2024, but NASSA shifted its official retirement date to 2030. Roscosmos and NASA set an agreement earlier in July to still continue to exchange rides for American astronauts and Russian cosmonauts aboard each other's respective launch vehicles -- Russia's Soyuz and SpaceX's Crew Dragon -- on four upcoming missions to rotate the station's crew.

An anonymous reader quotes a report from the Washington Post: China's latest launch of a huge rocket is, once again, raising alarm that the debris will crash into the Earth's surface in an uncertain location and at great speed. On Sunday afternoon local time, the Long March 5B blasted off from the Wenchang launch site on the southern island province of Hainan, carrying a solar-powered new lab, the Wentian experiment module, to be added to China's Tiangong Space Station. But the size of the heavy-lift rocket -- it stands 53.6 meters (176 feet) tall and weighs 837,500 kilograms (more than 1.8 million pounds) -- and the risky design of its launch process have led experts to fear that some debris from its core stage could fail to burn up as it reenters Earth's atmosphere.

As with two previous launches, the rocket shed its empty 23-ton first stage in orbit, meaning that it will continue to loop the Earth over coming days as it gradually comes closer to landing. This flight path is difficult to predict because of fluctuations in the atmosphere caused by changes in solar activity. Although experts consider the chances of debris hitting an inhabited area very low, many also believe China is taking an unnecessary risk. After the core stage of the last launch fell into the Indian Ocean, NASA Administrator Bill Nelson said China was "failing to meet responsible standards regarding their space debris," including minimizing risks during reentry and being transparent about operations. China rejects accusations of irresponsibility. In response to concerns about last year's launch, the Chinese Foreign Ministry said the likelihood of damage was "extremely low."

Many scientists agree with China that the odds of debris causing serious damage are tiny. An article published in the journal Nature Astronomy this month put the chance that, under current launch practices, someone would die or be injured from parts of a rocket making an uncontrolled reentry at 1 in 10 over the next decade. But many believe launch designs like the Long March 5B's are an unnecessary risk. "Launch providers have access to technologies and mission designs today that could eliminate the need for most uncontrolled re-entries," the authors wrote. They proposed global safety standards mandating controlled reentry.
UPDATE: It crashed into the Indian Ocean.

CNET spoke to the systems and deputy program manager for the Hubble Space Telescope at Lockheed Martin, who remembers the first 1995 "deep field" image from the Hubble Space Telescope — taken over 10 days and revealing 3,000 galaxies. But he also remembers just how revolutionary it was. "To look at a 'dark' sliver of the sky and see so many stars and galaxies really drives home how much we still have to learn about the universe."

Looking back, that was only from 340 miles above our atmosphere — not the million miles from Earth travelled by the Webb Space Telescope (which also scours the universe "for cosmic bits emanating luminescence elusive to human eyes, otherwise known as infrared light.")

Yet while this has been a glorious month for astronomy, "We will absolutely still need Hubble," said Cornell University astronomer Nikole Lewis. "In fact, I'm in the process of trying to put together a budget for a large treasury program on Hubble." Lewis is after something Hubble has but JWST lacks. She studies exoplanets and intends to use visible and ultraviolet light wavelengths to decode clouds and hazes of foreign worlds — the type of light JWST isn't sensitive to. "There's a lot of important information at those wavelengths."

Despite JWST's clout, Hubble is also still the top candidate for scrutinizing galaxies moving along the X or Y axis, rather than the Z axis. "While galactic motion 'toward' and 'away' from Earth is very easy to measure with redshift," a JWST specialty, "'side to side' motion is harder," Caplan said.

In truth, this unique Hubble power turns out to be how we realized a pretty massive detail about galaxies. Many of them are on a crash course right now. By staring at Andromeda over the years — the galaxy that Hubble's namesake used as evidence in 1923 to prove our universe extends beyond the Milky Way — and measuring how its light on individual pixels transferred from one to the next, JWST's predecessor showed us that this galaxy isn't just orbiting ours. "They really will collide," Caplan explained. Would JWST have caught that?

Nonetheless, all of this is to say that as JWST continues to flood the internet with colorful depictions of space's outer reaches, we should remember that it isn't Hubble's replacement. JWST is its successor. It'll work in tandem with Hubble and wouldn't exist in a world without it.... And though the James Webb Space Telescope's story began with a bang, we ought not to let Hubble's end with a whimper. "They're not shutting Hubble down," said Dave Meyer, a Northwestern University professor focused on Hubble discoveries.

"We still think that's about a decade away."
And that systems and deputy program manager for the Hubble Space Telescope at Lockheed Martin also shared another part of its legacy: inspiring the next generation of astronomers. "I grew up being fascinated by the Shuttle program and was mesmerized watching the astronauts service Hubble.

"That was definitely part of my inspiration to become an aerospace engineer."

"A small space rock has proven to have a big effect on NASA's newly operational deep-space telescope," reports Space.com, causing "significant uncorrectable change" according to a new report from NASA engineers. But fortunately, "Seventeen mirror segments remain unblemished and engineers were able to realign Webb's segments to account for most of the damage." A micrometeoroid struck the James Webb Space Telescope between May 22 and 24, impacting one of the observatory's 18 hexagonal golden mirrors. NASA had disclosed the micrometeoroid strike in June and noted that the debris was more sizeable than pre-launch modeling had accounted for. Now, scientists on the mission have shared an image that drives home the severity of the blow in a report released July 12 describing what scientists on the mission learned about using the observatory during its first six months in space.

Happily, in this case the overall effect on Webb was small....

Based on fuel usage, the telescope should last 20 years in space. But scientists aren't sure how much of an effect micrometeroid strikes will have upon its operations, the report authors stated. Micrometeroids are a known danger of space operations, and facing them is by no means new to scientists; the International Space Station and the Hubble Space Telescope are among long-running programs that are still operational despite occasional space rock strikes. However, Webb's orbit at Lagrange Point 2 about 1 million miles (1.5 million kilometers) away from the Earth may change the risk profile considerably....

In this case, however, the overall impact to the mission is small "because only a small portion of the telescope area was affected...." Engineers are still modeling how frequently such events will occur....

One remedy could be minimizing the amount of time Webb points directly into its orbital direction, "which statistically has higher micrometeoroid rates and energies," the team wrote.
Thanks to Tablizer (Slashdot reader #95,088) for sharing the article!

NASA is aiming to launch its new monster rocket, the Space Launch System, on its first trip to deep space as early as late August, the agency announced today. The Verge reports: NASA says it has placeholder dates for August 29th, September 2nd, and September 5th for the rocket's debut, though there is still plenty of work left to do on the vehicle between now and then. NASA officials stressed that they are not committing to any of these dates at the moment, but the announcement puts the rocket closer than it's ever been to its launch. The SLS has been in development for roughly a decade, and its inaugural launch date has been an ever-moving target. NASA originally planned to launch as early as 2017, but schedule delays, development mishaps, and poor management have caused the rocket's debut to slip again and again.

But after conducting a mostly full dress rehearsal with the rocket back in June, NASA is in the development end game, and an actual launch looms on the horizon. A more solid launch date should come closer to actual liftoff. "We'll make the agency commitment at the flight readiness review, just a little over a week before launch," NASA's Jim Free, associate administrator for exploration systems development, said during a press conference. "But these are the dates that the team is working to and have a plan to."

If NASA rolls out SLS to the launchpad in mid-August but cannot launch by September 5th, then the rocket's liftoff could see a significant delay. It all has to do with the SLS's flight termination system, which is used to destroy the rocket if something goes catastrophically wrong during the launch and the vehicle starts to veer off course. Teams must fully test the flight termination system before launch, and that work can only be done inside the VAB. Once the SLS is rolled out from the VAB, there is a 20-day time limit for the flight termination system before it has to be tested again. That means the rocket has to launch within 20 days of its rollout, or it must be returned to the VAB so that the flight termination system can get checked out again. That testing takes time, so if SLS is forced to come back to the VAB after rolling out in August, chances are it wouldn't be ready to fly until late October.

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has detected two new extrasolar planets. Phys.Org reports: The newfound alien worlds, designated TOI-5152 b and TOI-5153 b, are the size of Jupiter but about three times more massive than the solar system's biggest planet. [...] TOI-5152 b has a radius of about 1.07 Jupiter radii and is approximately three times more massive than Jupiter. It orbits its parent star every 54.19 days, at a distance of some 0.31 AU from it. The planet's equilibrium temperature was measured to be 688 K. The host TOI-5152 is a G1-type star nearly two times larger than the sun, located about 1,200 light years away from the Earth. Its age is estimated to be between 1.4 and 6.8 billion years.

TOI-5153 b has a mass of 3.26 Jupiter masses, while its radius was estimated to be 1.06 Jupiter radii. The orbital period of this exoplanet was measured to be 20.33 days and its distance to the host is nearly 0.16 AU. The astronomers calculated that the equilibrium temperature of TOI-5153 b is at a level of 906 K. The parent star is of spectral type F8. It is about 40% larger than the sun and is assumed to be 5.4 billion years old. The distance to this planetary system is about 1,270 light years. Therefore, TOI-5152 b and TOI-5153 b are warm and massive Jupiter-sized alien worlds. The astronomers noted that they are both metal-enriched and their heavy element content is consistent with the mass-metallicity relation of gas giants. Given that the two planets orbit moderately bright stars, the authors of the paper added that they are ideal targets for additional observations. The findings have been reported on the arXiv pre-print repository.

"NASA astronauts will go back to riding Russian rockets under an agreement announced Friday," reports the Associated Press, "and Russian cosmonauts will catch lifts to the International Space Station with SpaceX beginning this fall." The agreement ensures that the space station will always have at least one American and Russian on board to keep both sides of the orbiting outpost running smoothly, according to NASA and Russian officials. The swap had long been in the works and was finalized despite tensions over Moscow's war in Ukraine, a sign of continuing Russia-U.S. cooperation in space....

No money will exchange hands under the agreement, according to NASA....

Friday's news came just hours after the blustery chief of the Russian space agency, Dmitry Rogozin, was replaced by President Vladimir Putin, although the move did not appear to have any connection to the crew swap. Rogozin was expected to be given a new post.
CBS News explains the NASA-Roscosmos agreement: "The station was designed to be interdependent and relies on contributions from each space agency to function," the NASA statement said. "No one agency has the capability to function independent of the others..."

Russia provides the propellant and thrusters, either on the station or visiting Progress cargo ships, to change the station's orbit and offset the effects of atmospheric drag. NASA provides the bulk of the lab's electrical power, the massive gyroscopes that help maintain the station's orientation and a station-wide computer and communications network.

Russian cosmonauts are not trained to operate U.S. systems and vice versa, meaning at least one astronaut and one cosmonaut must be aboard at all times. If either side pulled out, the other likely would have to depart as well, or quickly come up with alternative systems.
"NASA wants to operate the space station through 2030," adds CBS, "but Russian cooperation is required. And it's not yet known whether Russia will go along."

An anonymous reader quotes a report from Phys.Org: [N]ew research from the University of California, Irvine reports that trees in California's mountain ranges and open spaces are dying from wildfires and other pressures -- and fewer new trees are filling the void. "The forests are not keeping up with these large fires," said study co-author James Randerson, the Ralph J. and Carol M. Cicerone Professor of Earth system science at UCI. Across the entire state, tree cover area has declined 6.7 percent since 1985. "These are big changes in less than four decades," he said. It's the first time that researchers have been able to measure tree population declines in California, and attribute the changes to such pressures as wildfires, drought stress and logging.

For the study, the UCI-led team used satellite data from the USGS and NASA's Landsat mission to study vegetation changes between 1985 and 2021. They found that one of the starkest declines in tree cover was in Southern California, where 14 percent of the tree population in local mountain ranges vanished, potentially permanently. The rate and scale of decline varies across the state. Tree cover in the Sierra Nevada, for instance, stayed relatively stable until around 2010, then began dropping precipitously. The 8.8 percent die-off in the Sierra coincided with a severe drought from 2012 to 2015, followed by some of the worst wildfires in the state's history, including the Creek Fire in 2020.

Fortunately "in the north, there's plenty of recovery after fire," said [Jonathan Wang, a postdoctoral researcher in Randerson's research group, who led the study published in AGU Advances], perhaps because of the region's higher rainfall and cooler temperatures. But even there, high fire years in 2018, 2020 and 2021 have taken a visible toll. The tree decline has also affected carbon storage abilities in the state, said Randerson, who added that the next step is to precisely quantify the impact on forests' ability to absorb anthropogenic carbon dioxide.

Dmitry Rogozin, the blustering head of Russia's state space corporation, Roscosmos, is out of the position following a big shake-up in the Russian government. From a report: He is being replaced by Yury Borisov, Russian deputy prime minister of space and defense, bringing an end to Rogozin's dynamic reign as general director of the country's space program. Rogozin has been in charge of Roscosmos since his appointment as director general in 2018, though prior to that, he was deputy prime minister since 2011, overseeing space and defense. He's been a controversial figure for most of that tenure, resulting in strained relations with NASA -- Russia's largest partner in space. Rogozin was sanctioned by the United States in 2014 and barred from entering the country due to his time as a deputy prime minister during Russia's annexation of Crimea.

As the head of Roscosmos, Rogozin became known for making wildly outlandish statements and threats, many of which put NASA in rather uncomfortable positions. His bombast got renewed focus when Russia began its invasion of Ukraine this year, prompting Rogozin to go into overdrive and make ludicrous claims that many interpreted as threats against NASA and the US / Russian space partnership. For instance, at the start of the war, Rogozin seemed to hint that Roscosmos might pull out of the International Space Station partnership and cause the ISS to come crashing down to Earth. And, after declaring that Russia would no longer supply rocket engines to the United States, Rogozin said NASA astronauts could use "broomsticks" to get to orbit.

David Matthews writes via Nature: See whether this sounds familiar: you build a piece of software to solve a research question. But when you move on to the next project, there's no one to maintain it. As it ages, it becomes obsolete, and the next academic to tackle a similar problem finds themselves having to reinvent the wheel. [...] Now, a funding initiative hopes to help ease that burden. [...] In January, Schmidt Futures, a science and technology-focused philanthropic organization founded by former Google chief executive Eric Schmidt and his wife Wendy, launched the Virtual Institute for Scientific Software (VISS), a network of centers across four universities in the United States and the United Kingdom. Each institution will hire around five or six engineers, says Stuart Feldman, Schmidt Futures' chief scientist, with funding typically running for five years and being reviewed annually. Overall, Schmidt Futures is putting US$40 million into the project, making it among the largest philanthropic investments in this area. The aim is to overcome a culture of relative neglect in academia for open-source scientific software, Feldman says, adding that support for software engineering is "a line item, just like fuel" at organizations such as NASA. "It's only in the university research lab environment where this is ancillary," he says. [...]

Those setting up VISS centers say Schmidt Futures' steady, relatively long-term funding will help them to overcome a range of problems endemic to academic software. Research grants rarely provide for software development, and when they do, the positions they fund are seldom full-time and long-term. "If you've got all of this fractional effort, it's really hard to hire people and provide them with a real career path," says Andrew Connolly, an astronomer who is also helping to set up the Washington centre. What's more, software engineers tend to be scattered and isolated across a university. "Peer development and peer community is really important to those types of positions," says Stone. "And that would be extraordinarily rare in academia." To counter this, VISS centers hope to create cohesive, stable teams that can learn from one another. [...]

Dario Taraborelli, who helps to coordinate another privately funded scientific-software project at the Chan Zuckerberg Initiative (CZI) in California, says that such initiatives fill a key gap in the scientific-software ecosystem, because funding agencies too often fail to prioritize crucial software infrastructure. Although there are now "substantial" grants dedicated to creating software, he says, there's precious little funding available to maintain what is built. Computer scientist Alexander Szalay, who is helping to set up a VISS centre at Johns Hopkins, agrees, noting that very few programs get to a point where enough researchers use and update them to remain useful. "They don't survive this 'Valley of Death,'" he says. "The funding stops when they actually develop the software prototype."

"On Monday, July 11, President Joe Biden released one of the James Webb Space Telescope's first images in a preview event at the White House in Washington," reports NASA in a press release. The full set of Webb's first full-color images and spectroscopic data will be released tomorrow on Tuesday, July 12 at 10:30 a.m. (14:30 UTC). You can watch the live broadcast of the unveiling here. From the report: This first image from NASA's James Webb Space Telescope is the deepest and sharpest infrared image of the distant universe to date. Known as Webb's First Deep Field, this image of galaxy cluster SMACS 0723 is overflowing with detail. Thousands of galaxies -- including the faintest objects ever observed in the infrared -- have appeared in Webb's view for the first time. This slice of the vast universe covers a patch of sky approximately the size of a grain of sand held at arm's length by someone on the ground.

Released one by one, the first images from the world's largest and most powerful space telescope will demonstrate Webb at its full power, ready to begin its mission to unfold the infrared universe. The first images will be added to this page as they are released.

In October 2020, the agency's OSIRIS-REx spacecraft nearly sank into the surface of the rubbly asteroid while picking up rocks for shipment to Earth in 2023, team members revealed Thursday (July 7). The spacecraft only escaped getting stuck or sinking into oblivion within Bennu by firing its thrusters at the right moment. Space.com reports: "We expected the surface to be pretty rigid," principal investigator Dante Lauretta, a planetary scientist at the University of Arizona, told Space.com. "We saw a giant wall of debris flying away from the sample site. For spacecraft operators, it was really frightening." Now that the spacecraft (more formally known as Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer) is safely on its way back to our planet to deliver its precious cargo, scientists are digging into the science implications of the dramatic moment.

"It turns out that the particles making up Bennu's exterior are so loosely packed and lightly bound to each other that they act more like a fluid than a solid," Lauretta said in a University of Arizona statement. That structure is why the OSIRIS-REx sampling probe had such a close call, he and his colleagues determined. The loose surface, made up of particles jostling against each other like plastic balls in a children's play area, has implications for how asteroids were formed and also for planetary defense techniques to protect against potential rogue space rocks coming near our planet, NASA added in a second statement.