分类： science

In a landmark announcement that has advanced one of the world’s most high-profile deep space exploration programs, NASA has formally named the crew set to fly on its upcoming Artemis III mission. Unlike the historic first crewed lunar landing missions of the Apollo program, this mission carries a distinct operational focus: it will serve as a critical full-system test flight ahead of the agency’s long-planned return of astronauts to the lunar surface.

The four-person crew assigned to the mission is composed entirely of male astronauts, a detail that has drawn quiet note amid earlier discussions about diversity in the Artemis program’s astronaut corps. Scheduled for launch in 2027, the mission will put all core Artemis systems – from the Space Launch System rocket and Orion crew capsule to new extravehicular activity suits and lunar orbit communications infrastructure – through their paces in the real conditions of cislunar space.

This test flight represents a make-or-break milestone for NASA’s Artemis initiative, which aims to establish a sustainable long-term human presence on the Moon and lay the groundwork for future crewed missions to Mars. Engineers and program leaders will use data collected during Artemis III to resolve any remaining technical issues before the agency attempts its first crewed lunar surface landing in more than half a century. The 2027 launch timeline reflects recent adjustments to the Artemis program schedule, which were implemented to ensure thorough testing and mitigate development risks for the complex new hardware at the heart of the initiative.

NASA has officially introduced the four-person crew for its long-awaited Artemis III mission, a mission whose scope has shifted dramatically from its original groundbreaking goal in the face of unexpected technical and infrastructure setbacks across its commercial partner network. Originally pitched as humanity’s first crewed lunar landing since NASA’s Apollo 17 mission in 1972, the 2027 flight was meant to see two astronauts touch down near the Moon’s permanently shadowed south pole to conduct a week of surface research.

In a major course correction announced in February this year, however, NASA redefined Artemis III as a low-Earth orbit test flight, operating only marginally farther from Earth than the International Space Station. Its new core objective will be to complete docking maneuvers with prototype lunar landers, a key procedural test that agency leaders say is critical before attempting a full landing attempt. Despite the scaled-back orbital profile, NASA Administrator Jared Isaacman framed the mission as a historic engineering challenge, noting that it will demand unprecedented coordination between government teams and private spaceflight stakeholders for a series of heavy-lift rocket launches.

The agency has now named the full core crew: veteran NASA astronaut Randy Bresnik will command the mission, while Italian Space Agency astronaut Luca Parmitano, who has accumulated more than 300 days of on-orbit experience across previous missions, will serve as pilot. Rounding out the core team are mission specialists Andre Douglas and Frank Rubio, both American astronauts. Experienced test pilot Bob Heintz, who has 170 days of spaceflight time under his belt, will act as backup, ready to step into any role on the crew if needed.

The major reshaping of Artemis III traces back to unresolvable delays in the development of SpaceX’s Starship, the craft selected to ferry astronauts from lunar orbit down to the Moon’s surface. A March 2026 report from the U.S. Government Accountability Office found that SpaceX had only made limited progress in maturing two critical, untested technologies: in-orbit refueling and cryogenic propellant storage. Starship’s massive size means it cannot reach lunar orbit without being refueled in low-Earth orbit first, a process that requires multiple sequential fuel tanker launches to transfer super-cold liquid methane and liquid oxygen to the crew vehicle – a complex maneuver that has never been successfully demonstrated in space. Agency officials also concluded that jumping straight from Artemis II’s upcoming lunar flyby to a full landing would carry too much risk, making an Earth-orbit docking test a necessary intermediate step.

Worsening the program’s timeline pressures, the Artemis program suffered a second major setback in late May when a catastrophic explosion destroyed Blue Origin’s New Glenn rocket during a routine hot-fire engine test. The blast left the launch pad extensively damaged, and no personnel were injured in the incident. Unlike SpaceX, which had alternate launch infrastructure after a 2016 explosion that kept it out of service for 15 months, Blue Origin has no backup pad for New Glenn launches, leaving the company facing months of potential downtime.

The damage has already created ripple effects across the entire Artemis schedule: the Blue Moon cargo lander, planned for a possible launch to the Moon as early as fall 2026, is now at high risk of missing its launch window. The crewed Blue Moon lander planned for Artemis IV faces major timeline uncertainty, and even the two prototype landers Artemis III is supposed to test are now facing scheduling questions.

In NASA’s most optimistic current projection, Artemis III will launch in 2027 as an orbital demonstration, followed by Artemis IV’s targeted lunar landing in early 2028, and Artemis V – which will carry out a second landing and begin construction of a lunar outpost – later that same year. While Blue Origin vice president John Couluris says the company and NASA are working around the clock to get back on track for a 2027 launch, most independent space analysts view that timeline as extremely aggressive.

Growing geopolitical competition adds extra urgency to NASA’s timeline: China has publicly targeted a 2030 crewed lunar landing, and a December 2025 executive order from former President Trump required NASA to return astronauts to the Moon by 2028 – the end of his current presidential term – and have initial base infrastructure in place by 2030. Many experts warn that the deck is stacked against NASA meeting its current goals. “It would not surprise me at all if China gets there first,” Dr. Simeon Barber, a lunar scientist at the Open University, told BBC News.

With untested refueling technology for Starship still undemonstrated and a key commercial partner left without a working launch pad, NASA’s path to a lunar landing now depends on a long chain of entirely unproven procedures all going exactly according to plan, leaving the agency with very little margin for error. Following the May explosion, Isaacman reaffirmed NASA’s commitment to supporting Blue Origin’s recovery efforts, but the critical open question remains: how long will recovery take, and can the already tight Artemis timeline absorb the delay?

Fifty-four years after the final Apollo 17 mission marked the last time humans walked on the lunar surface, NASA has announced the four-person crew for its upcoming Artemis III mission, a repurposed mission that represents a critical stepping stone to the first modern crewed lunar landing, currently scheduled for 2028.

Originally planned to make history as the first crewed lunar landing since the Apollo era, NASA revised the Artemis III mission framework in February 2026 after critical delays to the SpaceX Starship lunar lander, the vehicle contracted to carry astronauts down to the lunar surface. Development of the Starship has proceeded slower than expected, and the in-orbit refueling technology the lander depends on has never been successfully demonstrated. A March 2026 report from the US Government Accountability Office confirmed that SpaceX has only made “limited progress” on maturing this refueling technology, with the first demonstration test currently optimistically targeted for late 2026.

Rather than pushing the entire Artemis program timeline back further, agency leaders chose to reframe Artemis III as a full-scale crewed rehearsal that will validate key technologies and procedures ahead of the actual landing. Scheduled for launch no earlier than 2027 from NASA’s Kennedy Space Center in Florida aboard the agency’s heavy-lift Space Launch System (SLS) rocket, the mission will carry four astronauts inside the same Orion capsule that successfully completed the groundbreaking Artemis II lunar flyby in April 2026.

Unlike Artemis II, which saw the first humans travel beyond low Earth orbit since 1972 on a 10-day loop around the Moon, Artemis III will keep Orion in low Earth orbit at an altitude of roughly 290 miles – 40 miles higher than the International Space Station, equal to the distance between the British cities of Manchester and Edinburgh. There, the capsule will rendezvous and dock with prototype pathfinder lunar landers, allowing crew to test critical operational procedures. At least one crew member will enter the lander to verify hatch operations, life-support system connections, and test the new Axiom spacesuits that will be used for lunar surface extravehicular activity during subsequent landing missions.

These next-generation suits represent an unusual collaboration between aerospace and high fashion: Houston-based Axiom Space handled core engineering, adding a groundbreaking first-of-its-kind backup cooling loop to prevent overheating during 8-hour lunar surface spacewalks, while iconic Italian luxury brand Prada designed the inner garment that distributes chilled water evenly across an astronaut’s body.

The Artemis III crew will spend slightly more than nine days in orbit, one day longer than the Artemis II mission, before returning to Earth. Their re-entry will provide an opportunity to test an upgraded heat shield on Orion, collecting valuable performance data ahead of future deep space missions.

Following the successful completion of the Artemis III rehearsal, NASA plans to proceed with the Artemis IV mission in 2028, which will now be the first modern crewed lunar landing. That mission will see astronauts descend to the Moon’s south polar region, where permanently shadowed craters hold frozen water deposits that could one day be processed into drinking water, breathable oxygen, and rocket fuel to support long-term exploration. A second landing mission, Artemis V, is scheduled for late 2028, and will use a second lunar lander, Blue Origin’s Blue Moon Mk2, developed by Jeff Bezos’ private aerospace firm.

The overarching goal of the entire Artemis program is to establish a long-term human outpost on the Moon, outlined by NASA administrator Jared Isaacman in the May 2026 NASA Moon Base initiative. The three-phase plan calls for robotic survey missions and scientific instrument deliveries to the south pole before 2029, repeated crewed missions to expand the outpost starting in 2029, and semi-permanent habitats that support extended astronaut stays by the mid-2030s. A operational lunar base would enable continuous scientific research, test technologies for future crewed missions to Mars, allow for commercial lunar resource extraction, and help maintain U.S. leadership in the 21st century space race.

However, many space industry experts and analysts question whether NASA’s ambitious timeline can actually be met, even with the schedule adjustment. Beyond the ongoing delays to SpaceX’s Starship, the program suffered a major setback in May 2026 when Blue Origin’s only Cape Canaveral launch pad was heavily damaged by an explosion during a New Glenn rocket engine test. Unlike SpaceX, which has multiple launch pads across the United States, Blue Origin has no backup facility. Historical precedent from SpaceX’s 2016 launch pad loss suggests rebuilding will take at least 15 months, putting the delivery of the Blue Moon Mk2 lander for Artemis V in serious doubt.

“It would not surprise me at all if China gets [to the moon] first,” Dr. Simeon Barber of the Open University told the BBC, noting that lunar landers are the most technically complex component of any crewed landing mission, and development is largely out of NASA’s direct control.

The successful Artemis II mission earlier this year proved that NASA’s core Orion and SLS hardware works with a crew on board, but that has turned out to be the least challenging step of the modern lunar exploration effort. After Apollo 17 wrapped up in December 1972, public interest and political support for lunar exploration faded, along with federal funding, leaving the Moon unvisited by humans for more than half a century. Today, the United States is not the only nation pursuing crewed lunar landings: China has publicly targeted a 2030 landing, has already tested its Mengzhou capsule and Lanyue lander, and is developing the Long March 10 heavy-lift rocket. India, which successfully landed its uncrewed Chandrayaan-3 mission near the lunar south pole in 2023, has targeted a 2040 crew landing. Russia is partnering with China on a joint mid-2030s lunar base project, but sanctions, funding gaps, and technical challenges have put its contribution in question. While European and Japanese astronauts are expected to join future Artemis missions, there is currently no contractual guarantee of a seat for international partners on Artemis III.

A breathtaking new timelapse sequence has given humanity a one-of-a-kind perspective on one of Earth’s most dazzling natural phenomena: the aurora australis, more commonly known as the Southern Lights. The remarkable footage was not captured from a remote viewing spot on the planet’s southern surface, but from the unique vantage point of low-Earth orbit, taken by NASA astronaut Jessica Meir during her mission aboard the International Space Station (ISS).

Auroras like the Southern Lights form when charged particles released from the sun collide with gaseous molecules in Earth’s upper atmosphere. These interactions spark the glowing, dancing waves of green, purple and blue that draw skywatchers to polar regions year after year. While ground-level photographs and timelapses are common for this event, Meir’s capture from space offers an unprecedented, sweeping view that shows the full scale of the auroral oval as it wraps around the Earth’s southern pole.

The timelapse compresses hours of activity into a brief, mesmerizing sequence, revealing how the lights shift and undulate across the upper atmosphere against the backdrop of the dark, star-studded expanse of space. Space agencies including NASA regularly share imagery captured by ISS astronauts to engage the public with Earth science and astronomy, highlighting the dynamic beauty of our planet that can only be fully appreciated from orbit. Meir’s footage joins a growing archive of extraordinary astronomical and geophysical observations collected from the ISS, helping both scientists and the public better understand the behavior of space weather and its visible impacts on Earth.

A sudden acceleration in an ongoing air leak on the International Space Station (ISS) triggered emergency shelter protocols Friday, sending five of the outpost’s seven crew members to a docked SpaceX Dragon capsule as two Russian cosmonauts attempted targeted repairs on the affected Russian segment of the station.

The leak, located in the PrK transfer tunnel connecting to Russia’s Zvezda service module, has been a persistent issue for the orbital complex for roughly six years, caused by gradual cracking that has flared up and been patched intermittently. A new development emerged last month, however, following the docking of a new Russian cargo vessel: Roscosmos, Russia’s national space agency, detected a faster rate of pressure drop in the tunnel, indicating the leak had worsened. That prompted mission teams to schedule a more extensive repair operation Friday to address the problem permanently, rather than relying on temporary fixes.

Friday afternoon, the two Russian crew members, station commander Sergey Kud-Sverchkov and flight engineer Sergei Mikaev, began preparations to access the crack using a saw. The approach sparked concern from NASA mission control in Houston, which ordered five of the seven-person ISS crew to move to the docked SpaceX Dragon capsule Freedom, their designated emergency lifeboat, as a precaution. The five astronauts — Jessica Meir, Jack Hathaway, Chris Williams of NASA, Sophie Adenot of the European Space Agency, and Andrey Fedyaev of Roscosmos, all of whom arrived at the station in February — were instructed to don their spacesuits and stand by for a potential emergency undocking and return to Earth. Unlike many spacecraft that only ferry crew to and from the station, docked crew capsules remain permanently attached as lifeboats, ready to depart for Earth within minutes if the station faces an irreparable catastrophic threat. Kud-Sverchkov and Mikaev retained their own escape route via the separately docked Soyuz MS-28 crew capsule.

Within hours of the shelter order being issued, Roscosmos directed its cosmonauts to pause the repair work, and NASA subsequently lifted the safe-haven protocol. In a public statement posted to the social platform X, NASA spokeswoman Bethany Stevens confirmed: “Given this development, Nasa has instructed the crew members inside the Dragon spacecraft to end the safe haven procedures and return to planned operations aboard the International Space Station.”

Russian state news agency Tass, citing official comments from Roscosmos, reported that at no point during the incident did the leak or repair attempt pose a threat to the safety of the crew or the ISS’s critical onboard systems.

The ISS, the largest human-made object ever placed in orbit, stretches roughly the length of an American football field. It has been continuously occupied and operated by a multinational consortium led by the United States and Russia since 1998, with additional partners including Canada, Japan, and 11 European nations through the European Space Agency. The long-running orbital outpost has weathered a series of incremental structural issues over its decades in operation, including the recurring cracking in the Zvezda module that first emerged six years ago.