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![Illustration of a Polaris Dawn crewmember conducting the first-ever private spacewalk.](https://cdn.mos.cms.futurecdn.net/RcxpQm9zPPNBHC3hTSeepH-320-80.jpg)
SpaceX's historic Polaris Dawn astronaut mission delayed until mid-August
By Mike Wall published
SpaceX is now eyeing mid- to late August for the launch of the Polaris Dawn astronaut mission, which will feature the first-ever private spacewalk.
![A large glowing blue sphere next to an overlapping smaller grey sphere with a craggy texture](https://cdn.mos.cms.futurecdn.net/W5Lq2Fo8VhTsYJ72czXoAU-320-80.png)
A moon of Uranus could have a hidden ocean, James Webb Space Telescope finds
By Robert Lea published
Astronomers have found that Ariel, a moon of Uranus, has some of the most carbon dioxide-rich deposits in the solar system, hinting at a buried water ocean.
![Cosmonaut Oleg Novitsky shared this photo of the International Space Station on Twitter on Sept. 29, 2021. He and two colleagues were relocating a Russian Soyuz spacecraft from one port to another at the time.](https://cdn.mos.cms.futurecdn.net/46SoWfbWAVsNRsh8u53hsR-320-80.jpg)
International Space Station: Live updates
By Elizabeth Howell published
Find out what's going on at the International Space Station.
![Clouds of smoke and steam billow around Space Shuttle Discovery as it leaps off Launch Pad 39B on the historic Return to Flight mission STS-114. Liftoff occurred at 10:39 a.m. EDT. It is the 114th Space Shuttle flight and the 31st for Discovery](https://cdn.mos.cms.futurecdn.net/VaSpkV8BPBDRtHck5q3f6d-320-80.jpg)
On this day in space! July 26, 2005: Space shuttle Discovery returns to flight
By Hanneke Weitering last updated
On July 26, 2005, the space shuttle Discovery launched on the first return-to-flight mission following the Columbia disaster that killed seven crew members a little over two years earlier.
![a view of the international space station, with earth seen below](https://cdn.mos.cms.futurecdn.net/ZmAZWvDeUBSRsjxfSymhZE-320-80.jpg)
ISS scientists make headway in cancer research: 'We're NASA, we do Moonshots'
By Victoria Corless published
NASA's Cancer Moonshot Initiative aims to harness microgravity conditions on the International Space Station to study the disease like never before.
![NASA's Artemis 2 moon mission crew teaser with four astronauts in spacesuits.](https://cdn.mos.cms.futurecdn.net/Fa5JA5VLPfoFwXJXtryd5B-320-80.jpg)
NASA's Artemis 2 moon mission: Live updates
By Tariq Malik, Elizabeth Howell published
NASA's Artemis 2 mission is returning astronauts to the moon for the first time since 1972. See live mission updates here.
![a rocket on its side going into a large building that has banners for the artemis program, the u.s. flag and nasa at the top](https://cdn.mos.cms.futurecdn.net/sHpDrhjVvhEvqjQyqhxXs9-320-80.jpg)
Watch NASA's massive Artemis 2 rocket core stage arrive in Florida. Next stop: the moon (video, photos)
By Elizabeth Howell published
Artemis 2's core stage is near its launch site in Florida after sailing more than 900 miles from New Orleans. The rocket is scheduled to send NASA astronauts around the moon in 2025.
![an astronaut wears a helmet that includes a glowing green screen in front of his right eye](https://cdn.mos.cms.futurecdn.net/x6qK3FAhstpiGM35t98H5Z-320-80.jpg)
'We're pushing the limits:' Artemis 2 backup astronaut on 2025 round-the-moon mission (exclusive)
By Elizabeth Howell published
NASA's Artemis 2, a round-the-moon mission with astronauts, is scheduled for a 2025 liftoff. But as backup astronaut Andre Douglas notes, safety will come before schedules on the pioneering effort.
![A stormy and reddish scene.](https://cdn.mos.cms.futurecdn.net/VERcevpfhPvZHHv67pGzUb-320-80.jpg)
Alien weather report: James Webb Space Telescope detects hot, sandy wind on 2 brown dwarfs
By Keith Cooper published
The JWST's infrared vision has seen deep into the stormy atmosphere of two brown dwarfs that form the third closest system to the sun.
![The International Space Station, as seen from a departing SpaceX Crew Dragon spacecraft, in November 2021.](https://cdn.mos.cms.futurecdn.net/UPb2g8zVXssB8Q8edePAUT-320-80.jpg)
NASA looking at what artifacts to preserve from space station before 2030 demise
By Robert Z. Pearlman published
Two years after stating there were no plans to save artifacts from the end of the International Space Station, NASA is in the early stages of identifying what small parts of the complex to preserve.
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