ISS

Cosmonaut Stranded on Mir in 1991 Now Heads Rescue Mission to ISS (mashable.com) 27

An anonymous readers this surprising story from Mashable: When a Russian spaceship docked as a lifeboat for three stranded men at the International Space Station in February, one may have wondered if Sergei Krikalev, heading the rescue mission, felt any deja vu.

If that name doesn't ring a bell, he's also sometimes known as "the last Soviet" for his more than 311 days spent in space as the Soviet Union collapsed 250 miles beneath him in 1991. He was only meant to be at the Mir station for five months. Instead, he remained for close to a year, never abandoning the outpost.

Today, Krikalev, the former cosmonaut, is the executive director of human spaceflight for the Russian space agency. That means it's on his watch to make sure NASA astronaut Frank Rubio and cosmonauts Sergey Prokopyev and Dmitry Petelin get back home safely after their ship sprang a leak at the station in December 2022. The three marooned crew members were supposed to return this month. But their mission will now stretch for a year, until a new crew arrives to relieve them on a separate spacecraft in six months.

Krikalev's story of being stranded in space is now getting a perhaps overdue spotlight with a new podcast series called "The Last Soviet." And it's being told by another cosmonaut, Lance Bass.... Few may remember that boy-band member Bass almost made it to space on a Soyuz spacecraft himself. In 2002, he spent about six months, off and on, training in Star City, Russia, and was certified by Russia and NASA to fly a mission to the space station.

ISS

SpaceX Launch of Six Astronauts to the ISS is Scrubbed (cnn.com) 45

SpaceX is livestreaming coverage of its latest launch tonight. SpaceX and NASA were "preparing to launch a fresh crew to the International Space Station," reports CNN, "continuing the public-private effort to keep the orbiting laboratory fully staffed and return astronaut launches to U.S. soil

For this mission a reusable Falcon 9 rocket will eventually propel a Crew Dragon capsule into space — carrying six astronauts "from all over the world — two NASA astronauts, a Russian cosmonaut and an astronaut from the United Arab Emirates... to take over operations from the SpaceX Crew-5 astronauts who arrived at the space station in October 2022." They're expected to spend up to six months on board the orbiting laboratory, carrying out science experiments and maintaining the two-decade-old station.... During their stint in space, the Crew-6 astronauts will oversee more than 200 science-oriented projects, including researching how some substances burn in the microgravity environment and investigating microbial samples that will be collected from the exterior of the ISS.

They will play host to two other key missions that will stop by the ISS during their stay. The first is the Boeing Crew Flight Test, which will mark the first astronaut mission under a Boeing-NASA partnership. Slated for April, the flight will carry NASA astronauts Barry Wilmore and Sunita Williams to the space station, marking the last phase of a testing and demonstration program Boeing needs to carry out to certify its Starliner spacecraft for routine astronaut missions.

Then, in May, a group of four astronauts will arrive on a mission called AX-2 — a privately funded tourism mission to the space station. That mission, which will be carried out by a separate SpaceX Crew Dragon capsule, will include former NASA astronaut Peggy Whitson, now a private astronaut with the Texas-based space tourism company Axiom, which brokered and organized the mission. It will also include three paying customers, similar to the AX-1 mission that visited the ISS last year.

"It's another paradigm shift," mission commander Stephen Bowen said in January. "Those two events — huge events — in spaceflight happening during our increment, on top of all the other work we get to do, I don't think we're going to fully be able to absorb it until after the fact."

Roughly 25 hours after the launch the crew capsule willdock with the space station. This will be SpaceX's seventh astronaut-carrying flight for NASA since 2020.
ISS

Russia Launches Replacement Spacecraft For Astronauts Stranded By Coolant Leak (cnn.com) 27

Russia launched a Soyuz spacecraft that will replace a capsule that sprang a coolant leak in December, leaving two cosmonauts and one NASA astronaut without a ride home. CNN reports: Liftoff of the capsule, called the Soyuz MS-23, took place out of Russia's Baikonur Cosmodrome launch site in Kazakhstan on Thursday at 7:24 p.m. ET, which is 5:24 a.m. Friday local time. The uncrewed spacecraft will spend about two days in orbit, maneuvering toward the International Space Station It's expected to dock with the Poisk module -- which is on the space station's Russian-run portion -- just after 8 p.m. ET Saturday.

The Soyuz MS-23 will be the return vehicle for cosmonauts Sergey Prokopyev and Dmitri Petelin and NASA astronaut Frank Rubio, all of whom traveled to the space station aboard the Soyuz MS-22 capsule in September. Rather than flying with crew members aboard, the Soyuz MS-23 launched on Thursday with only a "Zero-G indicator," which can be any object that is left in the cabin and is designed to float freely when the capsule enters microgravity. For this mission, the indicator is a teddy bear tethered by a string inside the cabin.

ISS

Vast Acquires Launcher In Quest To Build Artificial Gravity Space Stations (techcrunch.com) 48

An anonymous reader quotes a report from TechCrunch: Vast Space, a company that emerged from stealth last September with the aim of building artificial gravity space stations in low Earth orbit, has acquired space tug startup Launcher, TechCrunch has exclusively learned. The acquisition, a first for Vast, will give the company access to Launcher's Orbiter space tug and payload platform and its liquid rocket engine, E-2. Under the terms of the deal, Vast will also absorb all of Launcher's talent, including Launcher founder Max Haot, who will join as president. The two companies told TechCrunch that the deal has been in the works for months, with both signing a Letter of Intent to acquire back in November.

The deal could be a big accelerator for Vast; the company's founder, billionaire crypto pioneer Jed McCaleb, said Vast will use the Orbiter tug to test space station subsystems and components in orbit as soon as June of this year, and then again around October. Those two missions, which will be Orbiter's second and third flights, will also carry customer payloads. Vast will continue to operate Orbiter as a commercial product; Haot said they had more than five customer contracts and are signing more. Haot added that the space tug's abilities, like approaching and moving away from spacecraft and hosting payloads, as well as its technologies like flight software, avionics and guidance, navigation and control systems will complement development of the space station.
"The two companies declined to provide much more detail about the upcoming missions using Orbiter, nor did they offer any detail about future timelines for development, partnerships or form factor of the station," notes TechCrunch. "But they did say that the first station the company sends to space will be zero G, with artificial gravity stations following."

More generally, McCaleb said that acquisitions are not part of Vast's larger strategy. "Acquisitions typically go pretty wrong," he said. "For the most part, the combined team now plus a few more folks, we'll be able to do quite a bit."
ISS

Second Soyuz Springs a Leak, Astronauts Stuck On ISS For An Extra Month (theregister.com) 47

Russia's space agency will hold off returning three astronauts from the International Space Station as it works with NASA to investigate a coolant leak issue that impacted an uncrewed freighter spacecraft last weekend. The Register reports: The Progress MS-21 -- also known as the Progress 82 spacecraft -- arrived at the floating space lab in October 2022 carrying water and other supplies. After months of being docked to the station's Poisk module, the vehicle suddenly began spewing liquid coolant. On February 11, engineers at the Russian Mission Control Center detected a drop in pressure inside its coolant loop, but the station and the crew onboard are safe.

The Progress 82 spacecraft is currently being filled with trash and is scheduled to undock on February 17 and be disposed of over the Pacific Ocean. It began leaking coolant just as the Russian uncrewed Progress 83 cargo spacecraft successfully docked with the station's Zvezda service module. NASA and Roscosmos are now investigating the coolant glitch on Progress 82 as it's the second Soyuz incident of late after the Soyuz MS-22 began leaking in December. It's not clear what might have caused that malfunction, although one possibility that has been floated is that a micrometeoroid pierced an exterior radiator.

Yury Borisov, Roscosmos's director general, said cosmonauts Sergey Prokopyev and Dmitry Petelin, as well as NASA astronaut Frank Rubio, will have to remain onboard until March at the earliest while officials examine the coolant loop's depressurization, according to Reuters. Their space ferry had been due to launch on February 20 but that has been pushed back to March 10 at the earliest. "Officials are monitoring all International Space Station systems and are not tracking any other issues," NASA concluded.

ISS

Russia To Rescue ISS Crew On Backup Rocket After Capsule Leak (reuters.com) 27

An anonymous reader quotes a report from Reuters: Russia said on Wednesday it would launch another Soyuz spacecraft next month to bring home two cosmonauts and a U.S. astronaut from the International Space Station after their original capsule was struck by a micrometeoroid and started leaking last month. The leak came from a tiny puncture -- less than 1 millimeter wide -- on the external cooling system of the Soyuz MS-22 capsule, one of two return capsules docked to the ISS that can bring crew members home.

Russia said a new capsule, Soyuz MS-23, would be sent up on Feb. 20 to replace the damaged Soyuz MS-22, which will be brought back to Earth empty. "Having analyzed the condition of the spacecraft, thermal calculations and technical documentation, it has been concluded that the MS-22 must be landed without a crew on board," said Yuri Borisov, the head of Russian space agency Roscosmos. Russian cosmonauts Sergey Prokopyev and Dmitry Petelin and U.S. astronaut Francisco Rubio had been due to end their mission in March but will now extend it by a few more months and return aboard the MS-23.

"They are ready to go with whatever decision we give them," Joel Montalbano, NASA's ISS program manager, told a news conference. "I may have to fly some more ice cream to reward them," he added. The MS-23, which had been due to take up three new crew in March, will instead depart from the Baikonur cosmodrome in Kazakhstan as an unmanned rescue mission next month. If there is an emergency in the meantime, Roscosmos said it will look at whether the MS-22 spacecraft can be used to rescue the crew. In this scenario, temperatures in the capsule could reach unhealthy levels of 30-40 degrees Celsius (86-104 degrees Fahrenheit). "In case of an emergency, when the crew will have a real threat to life on the station, then probably the danger of staying on the station can be higher than going down in an unhealthy Soyuz," Sergei Krikalev, Russia's chief of crewed space programs, said.

ISS

Space Station Astronauts Build Objects that Couldn't Exist on Earth (popsci.com) 26

"Aboard the International Space Station right now is a metal box, the size of a desktop PC tower," reports Popular Mechanics. "Inside, a nozzle is helping build little test parts that aren't possible to make on Earth."

The Washington Post reports: Backed by MIT's Space Exploration Initiative, astronauts on board the International Space Station on Friday completed a roughly 45-day experiment using a small microwave-sized box that injects resin into silicone skins to build parts, such as nuts and bolts. Now, after the parts travel back to Earth this weekend, scientists will evaluate the test pieces to examine whether they were made successfully — a process that could take weeks.

If so, it paves the way for astronauts to build huge parts that would be nearly impossible on Earth thanks to gravity and could upgrade space construction.It lets you build and modify space stations "quicker, cheaper and with less complexity," said Ariel Ekblaw, the founder of the Space Exploration Initiative. "It starts to unlock more opportunities for exploration."

The silicone skin is like a balloon filled with resin instead of air, an MIT engineer/researcher told Popular Science — with the resin then cured and solidified by a flash of ultraviolet light. (After which astronauts can cut away the silicone skin.)

The best part? The skin and the resin are both readily available off-the-shelf products.
ISS

NASA Mulls SpaceX Backup Plan For Crew of Russia's Leaky Soyuz Ship (reuters.com) 61

NASA is exploring whether SpaceX's Crew Dragon spacecraft can potentially offer an alternative ride home for some crew members of the International Space Station after a Russian capsule sprang a coolant leak while docked to the orbital lab. Reuters reports: NASA and Russia's space agency, Roscosmos, are investigating the cause of a punctured coolant line on an external radiator of Russia's Soyuz MS-22 spacecraft, which is supposed to return its crew of two cosmonauts and one U.S. astronaut to Earth early next year. But the Dec. 14 leak, which emptied the Soyuz of a vital fluid used to regulate crew cabin temperatures, has derailed Russia's space station routines, with engineers in Moscow examining whether to launch another Soyuz to retrieve the three-man team that flew to ISS aboard the crippled MS-22 craft. If Russia cannot launch another Soyuz ship, or decides for some reason that doing so would be too risky, NASA is weighing another option.

"We have asked SpaceX a few questions on their capability to return additional crew members on Dragon if necessary, but that is not our prime focus at this time," NASA spokeswoman Sandra Jones said in a statement to Reuters. It was unclear what NASA specifically asked of SpaceX's Crew Dragon capabilities, such as whether the company can find a way to increase the crew capacity of the Dragon currently docked to the station, or launch an empty capsule for the crew's rescue. But the company's potential involvement in a mission led by Russia underscores the degree of precaution NASA is taking to ensure its astronauts can safely return to Earth, should one of the other contingency plans arranged by Russia fall through.

ISS

Russian Space Agency May Send Rescue Craft To Space Station (washingtonpost.com) 61

The Russian space agency is deciding whether it needs to send a rescue spacecraft to the International Space Station to bring home two cosmonauts and a NASA astronaut after the Soyuz capsule that brought them there suffered a massive coolant leak. The Washington Post reports: Working with their counterparts at NASA, officials at Roscosmos, the Russian space agency, are trying to determine if the vehicle is sound enough to bring the crew home, Sergei Krikalev, the executive director of Roscosmos's human spaceflight programs, said during a briefing Thursday. If not, the Russian agency would send up another Soyuz spacecraft that was to be used for another crewed mission to retrieve the crew. That spacecraft could be ready to fly up without any people on board sometime in February, a few weeks before the crew is set to return in March, officials said.

The crew that would fly home on the rescue craft would include NASA astronaut Frank Rubio and a pair of cosmonauts, Sergey Prokopyev and Dmitri Petelin, who arrived at the station in September. Wayne Hale, a former NASA flight director and SpaceShuttle program manger, said he could recall of no other time when NASA or Roscosmos had been forced to consider sending up another spacecraft as a lifeboat to bring back a crew.

ISS

Soyuz Spacecraft Docked To ISS Springs Coolant Leak (spaceflightnow.com) 23

Longtime Slashdot reader necro81 writes: A Soyuz spacecraft (MS-22) docked at the International Space Station appears to have developed a coolant leak, according to NASA and various news sources. YouTuber Scott Manley has further background and explanation.

The cause and severity are presently not known. There is no immediate danger to the crew. The leak was discovered during preparations for a planned spacewalk, which has since been cancelled. This Soyuz is the return spacecraft for three of the ISS' residents, but after this failure a replacement spacecraft may need to sent up.

ISS

Chinese Astronauts Board Space Station In Historic Mission (reuters.com) 38

Three Chinese astronauts arrived on Wednesday at China's space station for the first in-orbit crew rotation in Chinese space history, launching operation of the second inhabited outpost in low-Earth orbit after the NASA-led International Space Station. Reuters reports: The spacecraft Shenzhou-15, or "Divine Vessel", and its three passengers lifted off atop a Long March-2F rocket from the Jiuquan Satellite Launch Centre at 11:08 p.m. (1508 GMT) on Tuesday in sub-freezing temperatures in the Gobi Desert in northwest China, according to state television. Shenzhou-15 was the last of 11 missions, including three previous crewed missions, needed to assemble the "Celestial Palace", as the multi-module station is known in Chinese. The first mission was launched in April 2021.

The spacecraft docked with the station more than six hours after the launch, and the three Shenzhou-15 astronauts were greeted with warm hugs from the previous Shenzhou crew from whom they were taking over. The Shenzhou-14 crew, who arrived in early June, will return to Earth after a one-week handover that will establish the station's ability to temporarily sustain six astronauts, another record for China's space program. The Shenzhou-15 mission offered the nation a rare moment to celebrate, at a time of widespread unhappiness over China's zero-COVID policies, while its economy cools amid uncertainties at home and abroad.

ISS

Japanese Researchers Faked Data In Spaceflight Simulation (gizmodo.com) 41

An anonymous reader quotes a report from Gizmodo: The Japan Aerospace Exploration Agency (JAXA) says a team of researchers fabricated the results of an experiment, led by one of its astronauts, that sought to simulate daily life on board the International Space Station (ISS). JAXA stated that it would subject astronaut Satoshi Furukawa to disciplinary action over data tampering, Japanese media reported. The experiment in question, conducted between 2016 and 2017, involved 40 participants who were confined to closed environments to simulate what astronauts experience during spaceflight.

The participants spent about two weeks at a facility in Tsukuba, a city northeast of Tokyo, after which time their stress levels and mental well-being were to be assessed by the overseeing researchers. Or at least, that was the plan. Instead, the two researchers responsible for conducting the interviews fabricated the data, compiling psychological assessments without actually having done the interviews and rewriting the diagnosis of the participants, according to NHK World-Japan. The researchers also claimed that three of them had conducted the interviews, when in fact it was just the two.

JAXA began investigating the results of the research in November 2020 upon noticing that something wasn't quite right with the data, and subsequently suspending the 190 million yen ($1.4 million) experiment. The researchers involved claimed that they were too busy to dedicate enough time towards the data gathering for the experiment, according to to JAXA vice president Hiroshi Sasaki and as reported in Kyoto News. The Japanese space agency will reprimand 58-year-old astronaut Furukawa, who was overseeing the experiment as project supervisor. However, since Furukawa was not personally involved in fabricating the data, his upcoming mission to the ISS in 2023 will not be affected. JAXA also stated that it would look into returning the grant it had received from the Ministry of Education, Culture, Sports, Science and Technology for the experiment.

ISS

SpaceX Launches Tomato Seeds, Other Supplies to Space Station (cnn.com) 28

About an hour ago SpaceX began tweeting video highlights of their latest launch — a NASA-commissioned resupply mission for the International Space Station.

- "Liftoff!"

- "Falcon 9's first stage has landed on the Just Read the Instructions droneship"

- "Dragon separation confirmed; autonomous docking to the Space Station on Sunday, November 27 at ~7:30 a.m. ET"

You can watch the whole launch on SpaceX's web site. But CNN explains that SpaceX "has launched more than two dozen resupply missions to the space station over the past decade as part of a multibillion-dollar deal with NASA. This launch comes amid SpaceX's busiest year to date, with more than 50 operations so far, including two astronaut missions."

And yet this one carries something unique. (And it's not just the Thanksgiving-themed treats and solar arrays to boost the space station's power...) Nutrients are a key component of maintaining good health in space. But fresh produce is in short supply on the space station compared with the prepackaged meals astronauts eat during their six-month stays in low-Earth orbit. "It is fairly important to our exploration goals at NASA to be able to sustain the crew with not only nutrition but also to look at various types of plants as sources for nutrients that we would be hard-pressed to sustain on the long trips between distant destinations like Mars and so forth," said Kirt Costello, chief scientist at NASA's International Space Station Program and a deputy manager of the ISS Research Integration Office.

Astronauts have grown and tasted different types of lettuce, radishes and chiles on the International Space Station. Now, the crew members can add some dwarf tomatoes — specifically, Red Robin tomatoes — to their list of space-grown salad ingredients. The experiment is part of an effort to provide continuous fresh food production in space.... The space tomatoes will be grown inside small bags called plant pillows installed in the Vegetable Production System, known as the Veggie growth chamber, on the space station. The astronauts will frequently water and nurture the plants....

The hardware is still in development for larger crop production on the space station and eventually other planets, but scientists are already planning what plants might grow best on the moon and Mars. Earlier this year, a team successfully grew plants in lunar soil that included samples collected during the Apollo missions. "Tomatoes are going to be a great crop for the moon," Massa said. "They're very nutritious, very delicious, and we think the astronauts will be really excited to grow them there."

Space

Boeing's Starliner Launch Pushed Back To April 2023 61

The first crewed launch of Boeing's Starliner has been delayed again, this time being pushed back to April 2023 from an earlier planned launch date of February. The Register reports: The change came with little announcement from NASA, which tweeted out the new date as a scheduling update without any additional details. In an accompanying blog post, NASA said the change was being made to eliminate conflicts between "visiting spacecraft traffic at the space station," but the agency didn't elaborate much beyond that.

Starliner has been a drag on Boeing since the company unveiled the capsule in 2010. According to Boeing's Q3 2022 filing, Starliner has lost the company $883 million since 2019. That was the year Starliner made its first attempt at an uncrewed launch and docking with the International Space Station, which failed due to a pair of software errors that left it unable to dock and saw it returned to Earth early under less-than-ideal circumstances. Attempts at a second launch in 2021 also failed when 13 of the Calamity Capsule's propulsion system valves failed pre-flight checks. Starliner only made it to the ISS for the first time this past May, but even that launch wasn't without issues as two of the craft's 12 thrusters failed once in orbit.
NASA

Space Station Astronauts Spot the World's Largest Methane Polluters (nasa.gov) 41

"NASA's Earth Surface Mineral Dust Source Investigation (EMIT) mission is mapping the prevalence of key minerals in the planet's dust-producing deserts — information that will advance our understanding of airborne dust's effects on climate," NASA announced this week.

"But EMIT has demonstrated another crucial capability: detecting the presence of methane, a potent greenhouse gas." In the data EMIT has collected since being installed on the International Space Station in July, the science team has identified more than 50 "super-emitters" in Central Asia, the Middle East, and the Southwestern United States. Super-emitters are facilities, equipment, and other infrastructure, typically in the fossil-fuel, waste, or agriculture sectors, that emit methane at high rates. "Reining in methane emissions is key to limiting global warming. This exciting new development will not only help researchers better pinpoint where methane leaks are coming from, but also provide insight on how they can be addressed — quickly," said NASA Administrator Bill Nelson.

"The International Space Station and NASA's more than two dozen satellites and instruments in space have long been invaluable in determining changes to the Earth's climate. EMIT is proving to be a critical tool in our toolbox to measure this potent greenhouse gas — and stop it at the source...."

"These results are exceptional, and they demonstrate the value of pairing global-scale perspective with the resolution required to identify methane point sources, down to the facility scale," said David Thompson, EMIT's instrument scientist and a senior research scientist at NASA's Jet Propulsion Laboratory in Southern California, which manages the mission. "It's a unique capability that will raise the bar on efforts to attribute methane sources and mitigate emissions from human activities."

Relative to carbon dioxide, methane makes up a fraction of human-caused greenhouse-gas emissions, but it's estimated to be 80 times more effective, ton for ton, at trapping heat in the atmosphere in the 20 years after release. Moreover, where carbon dioxide lingers for centuries, methane persists for about a decade, meaning that if emissions are reduced, the atmosphere will respond in a similar timeframe, leading to slower near-term warming.... "Some of the plumes EMIT detected are among the largest ever seen — unlike anything that has ever been observed from space," said Andrew Thorpe, a research technologist at JPL leading the EMIT methane effort. "What we've found in a just a short time already exceeds our expectations."

For example, the instrument detected a plume about 2 miles (3.3 kilometers) long southeast of Carlsbad, New Mexico, in the Permian Basin. One of the largest oilfields in the world, the Permian spans parts of southeastern New Mexico and western Texas. In Turkmenistan, EMIT identified 12 plumes from oil and gas infrastructure east of the Caspian Sea port city of Hazar. Blowing to the west, some plumes stretch more than 20 miles (32 kilometers).... With wide, repeated coverage from its vantage point on the space station, EMIT will potentially find hundreds of super-emitters — some of them previously spotted through air-, space-, or ground-based measurement, and others that were unknown.

"As it continues to survey the planet, EMIT will observe places in which no one thought to look for greenhouse-gas emitters before, and it will find plumes that no one expects," said Robert Green, EMIT's principal investigator at JPL.

NASA

SpaceX Splashes Down NASA Astronauts, Completing Crew-4 Mission (cnbc.com) 15

SpaceX returned its fourth operational crew mission from the International Space Station on Friday, with the quartet of astronauts splashing down in the company's capsule off the coast of Florida. CNBC reports: The company's Crew Dragon spacecraft "Freedom" undocked from the ISS at around noon ET to begin the trip back to Earth, with splashdown happening around 5 p.m. ET. "Welcome home -- thanks for flying SpaceX," the company's mission control told the crew shortly after landing. "Thank you for an incredible ride to orbit, and an incredible ride home," Crew-4 commander Kjell Lindgren said in response.

Crew-4 includes NASA astronauts Lindgren, Bob Hines, and Jessica Watkins, as well as European Space Agency astronaut Samantha Cristoforetti. The mission launched in April for a six-month stay on the orbiting research laboratory. Elon Musk's company launched the Crew-5 mission last week, bringing four other astronauts to the ISS. SpaceX has now flown 30 people to orbit since its first crewed launch in May 2020, with six government missions and two private ones.

Earth

Increase in LED Lighting 'Risks Harming Human and Animal Health' (theguardian.com) 201

Blue light from artificial sources is on the rise, which may have negative consequences for human health and the wider environment, according to a study. From a report: Academics at the University of Exeter have identified a shift in the kind of lighting technologies European countries are using at night to brighten streets and buildings. Using images produced by the International Space Station (ISS), they have found that the orange-coloured emissions from older sodium lights are rapidly being replaced by white-coloured emissions produced by LEDs. While LED lighting is more energy-efficient and costs less to run, the researchers say the increased blue light radiation associated with it is causing "substantial biological impacts" across the continent. The study also claims that previous research into the effects of light pollution have underestimated the impacts of blue light radiation.

Chief among the health consequences of blue light is its ability to suppress the production of melatonin, the hormone that regulates sleep patterns in humans and other organisms. Numerous scientific studies have warned that increased exposure to artificial blue light can worsen people's sleeping habits, which in turn can lead to a variety of chronic health conditions over time. The increase in blue light radiation in Europe has also reduced the visibility of stars in the night sky, which the study says "may have impacts on people's sense of nature." Blue light can also alter the behavioural patterns of animals including bats and moths, as it can change their movements towards or away from light sources.

ISS

Russia Unveils Model of Proposed Space Station After Leaving ISS (theguardian.com) 108

The Russian space agency has unveiled a physical model of what a planned Russian-built space station will look like, suggesting Moscow is serious about abandoning the International Space Station (ISS) and going it alone. The Guardian reports: Russia wants to reduce its dependency on western countries and forge ahead on its own, or cooperate with countries such as China and Iran, after sanctions were imposed by the west as a result of the invasion of Ukraine. Roscosmos presented a model of the space station, nicknamed "Ross" by Russian state media, on Monday at a military-industrial exhibition outside Moscow.

Roscosmos said its space station would be launched in two phases, without giving dates. For the first phase a four-module space station would start operating. That would be followed by two more modules and a service platform, it said. That would be enough, when completed, to accommodate up to four cosmonauts and scientific equipment. Roscosmos has said the station would afford Russian cosmonauts a much wider view by which to monitor Earth than their current segment. Although designs for some of the station exist, design work is still under way on other segments.

Russian state media have suggested the launch of the first stage is planned for 2025-26 and no later than 2030. Launch of the second and final stage is planned for 2030-35, they have reported. The space station, as currently conceived, would not have a permanent human presence but would be staffed twice a year for extended periods. Dmitry Rogozin, the previous head of Roscosmos and a hardliner known for his tough statements against the west, has suggested the new space station could fulfil a military purpose if necessary.

ISS

Russia Tells NASA Space Station Pullout Less Imminent Than Indicated Earlier (reuters.com) 48

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."

ISS

Russia Leaving the International Space Station in 2024 and Will Focus on Building Its Own (techcrunch.com) 202

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.

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