Exoplanets

NASA History
Exoplanets
Kepler / K2

More Planets than Stars: Kepler’s Legacy

The Kepler mission enabled the discovery of thousands of exoplanets, revealing a deep truth about our place in the cosmos: there are more planets than stars in the Milky Way galaxy. The road to this fundamental change in our understanding of the universe, however, required almost 20 years of persistence before the mission became a […]
Posted March 6, 2024
General
Ames Research Center
Ames Research Center's Science Directorate
Diversity at NASA
Exoplanet Atmosphere
Exoplanets
James Webb Space Telescope (JWST)
Missions
NASA Centers & Facilities
People of NASA

NASA Astronomer Sees Power in Community, Works to Build More

Science is often portrayed as a solitary affair, where discoveries are made by lone geniuses toiling in isolation. But Dr. Natasha Batalha, an astronomer at NASA’s Ames Research Center in California’s Silicon Valley, says solving problems with the people around her is one of the best parts of her job.  “Oh, man, working with people […]
Posted February 21, 2024
Exoplanet Discoveries
Exoplanets
Gas Giant Exoplanets
Missions
The Universe
WISE (Wide-field Infrared Survey Explorer)

Discovery Alert: Glowing Cloud Points to a Cosmic Collision

Scientists find that a glowing cloud that obscured a star was caused by a cataclysmic collision of two giant exoplanets.
Posted February 17, 2024
Exoplanets
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Super-Earth Exoplanets
TESS (Transiting Exoplanet Survey Satellite)

Discovery Alert: A ‘Super-Earth’ in the Habitable Zone

A newly discovered ‘super-Earth’ dwells in the habitable zone of its parent star – and might have a roughly Earth-sized companion.
Posted January 31, 2024
Exoplanets
Goddard Space Flight Center
Hubble Space Telescope
Missions
Studying Exoplanets
The Universe

NASA’s Hubble Finds Water Vapor in Small Exoplanet’s Atmosphere

Astronomers using NASA’s Hubble Space Telescope observed the smallest exoplanet where water vapor has been detected in the atmosphere. At only approximately twice Earth’s diameter, the planet GJ 9827d could be an example of potential planets with water-rich atmospheres elsewhere in our galaxy.
Posted January 25, 2024
Exoplanet Discoveries
Exoplanets
Terrestrial Planets
TESS (Transiting Exoplanet Survey Satellite)

Discovery Alert: Earth-sized Planet Has a ‘Lava Hemisphere’

In a system with two known planets, astronomers spotted something new: a small object transiting across the Sun-sized star. This turned out to be another planet: extra hot and Earth-sized.
Posted January 10, 2024
Astrophysics Division
Chandra X-Ray Observatory
Exoplanets
Hubble Space Telescope
James Webb Space Telescope (JWST)
TESS (Transiting Exoplanet Survey Satellite)
The Universe

NASA Features New Discoveries at American Astronomical Society Meeting

Experts will discuss new research from NASA missions at the 243rd meeting of the American Astronomical Society (AAS), on topics ranging from planets outside our solar system to fleeting, high-energy explosions in the universe. The meeting will take place Jan. 7-11 at the New Orleans Ernest N. Morial Convention Center in New Orleans. In press […]
Posted January 5, 2024
Astrophysics
Exoplanets
Goddard Space Flight Center
Hubble Space Telescope
Missions
Studying Exoplanets
The Universe

NASA’s Hubble Observes Exoplanet Atmosphere Changing Over 3 Years

By combining several years of observations from NASA’s Hubble Space Telescope along with conducting computer modelling, astronomers have found evidence for massive cyclones and other dynamic weather activity swirling on a hot, Jupiter-sized planet 880 light-years away. The planet, called WASP-121 b, is not habitable.
Posted January 4, 2024
James Webb Space Telescope (JWST)
Astrophysics
Brown Dwarfs
Exoplanets
Goddard Space Flight Center
Missions
Science & Research
Stars
The Universe

NASA’s Webb Identifies Tiniest Free-Floating Brown Dwarf

Brown dwarfs are objects that straddle the dividing line between stars and planets. They form like stars, growing dense enough to collapse under their own gravity, but they never become dense and hot enough to begin fusing hydrogen and turn into a star. At the low end of the scale, some brown dwarfs are comparable […]
Posted December 13, 2023
Exoplanet Discoveries
Exoplanet Transits
Exoplanets
Hubble Space Telescope
James Webb Space Telescope (JWST)
Nancy Grace Roman Space Telescope

Seeing and Believing: 15 Years of Exoplanet Images

Fifteen years ago, astronomers delivered what is now an iconic direct image of an exoplanet, Beta Pictoris b.
Posted December 12, 2023
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231
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22
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Earth Science Technology Office
9
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102
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69
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5
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3
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6
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18
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