There might be a type of exoplanet without dry land. They're called "Hycean" worlds, a portmanteau of "hydrogen" and "ocean." They're mostly or entirely covered in oceans and have thick hydrogen atmospheres.
Astrobiology
Jan 27, 2025
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37
NASA's Artemis program goal of establishing a human presence on Earth's moon is closer than ever to becoming a reality within the next few decades. But today's starry-eyed dreamers are reckoning with the gritty reality of ...
Space Exploration
Jan 22, 2025
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73
One of NASA's two stuck astronauts got a much welcomed change of scenery Thursday, stepping out on her first spacewalk since arriving at the International Space Station more than seven months ago.
Space Exploration
Jan 16, 2025
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30
Two US astronauts who have been stuck for months on the International Space Station (ISS) said Wednesday they have plenty of food, are not facing a laundry crisis, and don't yet feel like castaways.
Space Exploration
Jan 9, 2025
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64
Humans are returning to the moon—this time, to stay. Because our presence will be more permanent, NASA has selected a location that maximizes line-of-sight communication with Earth, solar visibility, and access to water ice: ...
Space Exploration
Dec 27, 2024
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735
New research suggests that our best hopes for finding existing life on Mars isn't on the surface, but buried deep within the crust.
Astrobiology
Dec 23, 2024
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77
Submarines are emerging as a unique research platform to study human adaption to extreme environments—from ocean depths to outer space.
Space Exploration
Dec 17, 2024
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53
When NASA's Europa Clipper reaches its destination in 2030, the spacecraft will prepare to aim an array of powerful science instruments toward Jupiter's moon Europa during 49 flybys, looking for signs that the ocean beneath ...
Space Exploration
Nov 20, 2024
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48
The first human tissue samples from Oxford's Space Innovation Lab (SIL) have been launched and are on their way to the International Space Station, where they will be used to study the effects of space microgravity on the ...
Space Exploration
Nov 5, 2024
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33
In the past, spaceflight was the preserve of government-funded astronauts who had to meet stringent physical, cognitive, psychological and social requirements for selection. But in recent years, that has all been changing.
Space Exploration
Nov 1, 2024
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35
