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.

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.

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.

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.

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.

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."

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'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.

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.

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.

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.

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."

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.

"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."

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.

The European Space Agency has officially terminated cooperation with Russia on a mission to put a rover on Mars, with Russia's space chief furiously responding by banning cosmonauts on the ISS from using a Europe-made robotic arm. France 24 reports: The ESA had previously suspended ties on the joint ExoMars mission, which had planned to use Russian rockets to put Europe's Rosalind Franklin rover on the red planet to drill for signs of life, due to Russia's invasion of Ukraine. ESA Director-General Josef Aschbacher tweeted on Tuesday that because the war and resulting sanctions "continue to prevail," the agency would "officially terminate" ties with Russia on ExoMars and its landing platform.

The firebrand head of Russian space agency Roscosmos Dmitry Rogozin issued an angry response. "Has the head of the European Space Agency thought about the work of thousands of scientists and engineers in Europe and Russia which has been ended by this decision? Is he prepared to answer for sabotaging a joint Mars mission?" Rogozin said on Telegram. "I, in turn, order our crew on the ISS to stop working with the European manipulator ERA," he added.

NASA said this week that it plans to purchase five additional Crew Dragon missions from SpaceX to carry astronauts to the International Space Station. Ars Technica reports: Although the space agency's news release does not specifically say so, these may be the final flights NASA needs to keep the space station fully occupied into the year 2030. As of now, there is no signed international agreement to keep the station flying until then, but this new procurement sends a strong signal that the space agency expects the orbital outpost to keep flying that long.

The announcement also suggests that SpaceX will fly more than twice as many crews to the space station than the other partner in NASA's commercial crew program, Boeing. Under the new agreement, SpaceX would fly 14 crewed missions to the station on Crew Dragon, and Boeing would fly six during the lifetime of the station.

Boeing's Orbital Flight Test 2 (OFT-2) "is officially a success," reports Space.com: That's the verdict that leaders at NASA and Boeing gave during a press briefing on Wednesday night (May 25), a few hours after the aerospace giant's Starliner capsule returned to Earth to wrap up OFT-2, a crucial uncrewed demonstration mission to the International Space Station.

Starliner touched down in the White Sands Missile Range, a U.S. Army facility in New Mexico, at 6:49 p.m EDT (2249 GMT) on Wednesday, hitting the desert dirt just 0.3 miles (0.5 kilometers) from its target landing point. Steve Stich, manager of NASA's Commercial Crew Program, described the landing as "picture perfect" during Wednesday night's briefing, saying that the test flight accomplished all of its mission objectives....

OFT-2 went smoothly from start to finish, though it did have a few minor hiccups. For example, two thrusters on Starliner's service module failed during the orbital insertion burn, which occurred about 30 minutes after launch. And as Starliner approached the space station on Friday (May 20), an additional two thrusters needed to be shut down, this time in the capsule's reaction control system. In both cases, backups for each system worked as they were designed to do, and neither issue substantially affected the mission. But Starliner's thrusters will be a focus of several post-flight checks and tests in the near future.
The Washington Post writes that on-the-ground engineers "won't be able to examine the two main thrusters that cut out since they are housed in the spacecraft's service module, which was jettisoned during the return." (And during the flight, their article adds, "the spacecraft's thermal control system, used to keep the spacecraft at the right temperature, also failed.") But NASA's Steve Stich tells Space.com that "Putting the vehicle through its paces on this flight is really the only way to prepare us for the crewed flight test.

"Once we work through all the data, we'll be ready to fly crew on this vehicle."

Boeing's Starliner successfully docked to the International Space Station Friday night for the first time.

And right now, Boeing is beginning the official hatch-opening ceremon, in which the space station astronauts already on the ISS "open the hatch to the vehicle and retrieve some cargo that's packed inside," explains the Verge: NASA tasked Boeing with conducting an uncrewed flight demonstration of Starliner to show that the capsule can hit all of the major milestones it'll need to hit when it is carrying passengers... This mission is called OFT-2 since it's technically a do-over of a mission that Boeing attempted back in 2019, called OFT. During that flight, Starliner launched to space as planned, but a software glitch prevented the capsule from getting in the right orbit it needed to reach to rendezvous with the ISS. Boeing had to bring the vehicle home early, and the company never demonstrated Starliner's ability to dock with the ISS....

Using a series of sensors, the capsule autonomously guided itself onto an open docking port on the space station.... Docking occurred a little over an hour behind schedule, due to some issues with Starliner's graphics and docking ring, which were resolved ahead of the docking....

[Thursday] At 6:54PM ET, Starliner successfully launched to space on top of an Atlas V rocket, built and operated by the United Launch Alliance. Once Starliner separated from the Atlas V, it had to fire its own thrusters to insert itself into the proper orbit for reaching the space station. However, after that maneuver took place, Boeing and NASA revealed that two of the 12 thrusters Starliner uses for the procedure failed and cut off too early. The capsule's flight control system was able to kick in and rerouted to a working thruster, which helped get Starliner into a stable orbit.... Today, Boeing revealed that a drop in chamber pressure had caused the early cutoff of the thruster, but that system behaved normally during follow-up burns of the thrusters. And with redundancies on the spacecraft, the issue "does not pose a risk to the rest of the flight test," according to Boeing.

Boeing also noted today that the Starliner team is investigating some weird behavior of a "thermal cooling loop" but said that temperatures are stable on the spacecraft.
From the space station, NASA astronaut Bob Hines said the achievement "marks a great milestone towards providing additional commercial access to low Earth orbit, sustaining the ISS and enabling NASA's goal of returning humans to the Moon and eventually to Mars.

"Great accomplishments in human spaceflight are long remembered by history. Today will be no different."

A long-time Slashdot reader shares this schedule (EST): 5/20, 3:30 pm — Starliner docking with ISS.
5/21, 11:30 am — Safety checks completed. Hatches opened.
5/24, 12:00 pm — Starliner loading completed. Hatched closed.
5/25, 2:00 pm — Starliner undocking from ISS.
5/25, 5:45 pm — Coverage of Starliner landing begins.

Again, the streams will be broadcast at NASA Television. I don't know about any of you, but I know what I'm doing this weekend.

After startup Axiom Space brokered the first visit to the Space Station by an all-private crew, the AX-1 mission turned into a "longer-than-expected" stay, reports CNN. It launched on April 8 and "was originally billed as a 10-day mission," CNN notes, "but delays have extended the mission by about a week." The four crew members — Michael López-Alegría, a former NASA astronaut-turned-Axiom employee who is commanding the mission; Israeli businessman Eytan Stibbe; Canadian investor Mark Pathy; and Ohio-based real estate magnate Larry Connor — are slated to leave the space station aboard their SpaceX Crew Dragon capsule on Sunday at 8:55 pm ET. That's another 24-hour delay from what NASA and Axiom were targeting on Saturday. They now plan to spend a day free flying through orbit before plummeting back into the atmosphere and parachuting to a splashdown landing off the coast of Florida at about 1 pm ET Monday, according to a tweet from Kathy Lueders, the head of NASA's human spaceflight program...

During their first 12 days on the space station, the group stuck to a regimented schedule, which included about 14 hours per day of activities, including scientific research that was designed by various research hospitals, universities, tech companies and more. They also spent time doing outreach events by video conferencing with children and students. The weather delays then afforded to them "a bit more time to absorb the remarkable views of the blue planet and review the vast amount of work that was successfully completed during the mission," according to Axiom....

It's not the first time paying customers or otherwise non-astronauts have visited the ISS, as Russia has sold seats on its Soyuz spacecraft to various wealthy thrill seekers in years past. But AX-1 is the first mission with a crew entirely comprised of private citizens with no active members of a government astronaut corps accompanying them in the capsule during the trip to and from the ISS. It's also the first time private citizens have traveled to the ISS on a US-made spacecraft.