Long ago, flowing wind and water shaped Mars's malleable sand and sediment into dunes, ripples and other landscape patterns, called bedforms. Over billions of years, some of these landforms hardened into rock—scientists ...
Planetary Sciences
Sep 25, 2024
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102
Although most potentially habitable worlds orbit red dwarf stars, we know larger and brighter stars can harbor life. One yellow dwarf star, for example, is known to have a planet teaming with life, perhaps even intelligent ...
Astrobiology
Sep 23, 2024
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35
Most of the exoplanets we've discovered orbit red dwarf stars. This isn't because red dwarfs are somehow special, simply that they are common. About 75% of the stars in the Milky Way are red dwarfs, so you would expect red ...
Astrobiology
Sep 20, 2024
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46
If you are going to look for intelligent life beyond Earth, there are few better candidates than the TRAPPIST-1 star system. It isn't a perfect choice. Red dwarf stars like TRAPPIST-1 are notorious for emitting flares and ...
Astrobiology
Sep 19, 2024
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31
Earlier this year, NASA selected a rather interesting proposal for Phase I development as part of their NASA Innovative Advanced Concepts (NIAC) program. It's known as Swarming Proxima Centauri, a collaborative effort between ...
Space Exploration
Sep 16, 2024
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106
NASA's Perseverance rover is tackling a steep new challenge on Mars.
Space Exploration
Aug 28, 2024
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16
Researchers have identified the specific locations from which most of the approximately 200 Martian meteorites originate. They've traced the meteorites to five impact craters within two volcanic regions on the red planet ...
Planetary Sciences
Aug 19, 2024
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121
In an exciting breakthrough for astronomy and the search for extraterrestrial life, a team of international scientists has announced the discovery of Gliese 12 b, a temperate, Earth-sized exoplanet just 40 light-years away—a ...
Astrobiology
Jul 30, 2024
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52
Researchers discovered mini-Neptunes around four red dwarfs using observations from a global network of ground-based telescopes and the TESS space telescope. These four mini-Neptunes are close to their parent stars, and the ...
Planetary Sciences
Jun 13, 2024
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58
It's tiny, but it's there. By now, we're all used to seeing amazing photos of Jupiter courtesy of NASA's Juno mission on a routine basis. Many of these are processed by volunteer "citizen scientists," and they show the swirling ...
Planetary Sciences
May 16, 2024
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