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Terrestrial Exoplanets

For Seven Earth-Sized Planets, a Question of Habitability
2 min read

They might make up the most famous planetary system beyond our own: the TRAPPIST-1 star and its seven small, rocky…

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Other Stars, Other Worlds
1 min read

How different is our solar system from others in the Milky Way? And how much are we alike? This five-part…

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NASA’s Roman Mission Shares Detailed Plans to Scour Skies
6 min read

NASA’s Nancy Grace Roman Space Telescope team shared Thursday the designs for the three core surveys the mission will conduct…

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Target Star Catalog
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This catalog lists the stars that are the best candidates to explore for Earth-like exoplanets with NASA's Habitable Worlds Observatory…

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Discovery Alert: With Six New Worlds, 5,500 Discovery Milestone Passed!
4 min read

On Aug. 24, 2023, more than three decades after the first confirmation of planets beyond our own solar system, scientists…

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NASA’s TESS Finds Intriguing World Sized Between Earth, Venus
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Using observations by NASA’s TESS (Transiting Exoplanet Survey Satellite) and many other facilities, two international teams of astronomers have discovered…

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Discovery Alert: An Earth-sized World and Its Ultra-cool Star
4 min read

Our galaxy is a jewel box of red stars. More than 70% of the stars in the Milky Way are…

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Webb Study Reveals Rocky Planets Can Form in Extreme Environments
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An international team of astronomers has used NASA’s James Webb Space Telescope to provide the first observation of water and…

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Strange New Worlds
1 min read

A world with two suns, a lava planet, and a world trapped in eternal darkness are just some of the…

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