Terrestrial Exoplanets

Earth-like Exoplanets
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Exoplanet Discoveries
Exoplanets
Terrestrial Exoplanets
The Universe

Discovery Alert: An Ice-Cold Earth?

The Discovery A candidate planet that might be remarkably similar to Earth, HD 137010 b, has one potentially big difference: It could be colder than perpetually frozen Mars. Key Facts Scientists continue to mine data gathered by NASA’s Kepler Space Telescope, retired in 2018, and continue to turn up surprises. A new paper reveals the […]
Posted January 28, 2026
Exoplanets
Exoplanet Discoveries
Gas Giant Exoplanets
Jet Propulsion Laboratory
Kepler / K2
Nancy Grace Roman Space Telescope
Neptune-Like Exoplanets
Super-Earth Exoplanets
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TESS (Transiting Exoplanet Survey Satellite)
The Search for Life

NASA’s Tally of Planets Outside Our Solar System Reaches 6,000

The milestone highlights the accelerating rate of discoveries, just over three decades since the first exoplanets were found. The official number of exoplanets — planets outside our solar system — tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, so no […]
Posted September 17, 2025
Nancy Grace Roman Space Telescope
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The Milky Way
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The Universe

NASA’s Roman Mission Shares Detailed Plans to Scour Skies

NASA’s Nancy Grace Roman Space Telescope team shared Thursday the designs for the three core surveys the mission will conduct after launch. These observation programs are designed to investigate some of the most profound mysteries in astrophysics while enabling expansive cosmic exploration that will revolutionize our understanding of the universe.
Posted April 24, 2025
Exoplanet Discoveries
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Exoplanets
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Terrestrial Exoplanets

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

On Aug. 24, 2023, more than three decades after the first confirmation of planets beyond our own solar system, scientists announced the discovery of six new exoplanets, stretching that number to 5,502. From zero exoplanet confirmations to over 5,500 in just a few decades, this new milestone marks another major step in the journey to […]
Posted July 17, 2024
Exoplanet Science
Exoplanets
Red Dwarfs
Terrestrial Exoplanets

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

Our galaxy is a jewel box of red stars. More than 70% of the stars in the Milky Way are M dwarfs, also known as red dwarfs. These stars are cool and dim compared with our Sun, but they often blast orbiting exoplanets with high-energy radiation, especially early in their lives. And those ‘‘lives’’ last […]
Posted May 15, 2024
James Webb Space Telescope (JWST)
Exoplanets
Goddard Space Flight Center
Missions
Nebulae
Planetary Nebulae
Stars
Terrestrial Exoplanets
The Universe

Webb Study Reveals Rocky Planets Can Form in Extreme Environments

An international team of astronomers has used NASA’s James Webb Space Telescope to provide the first observation of water and other molecules in the highly irradiated inner, rocky-planet-forming regions of a disk in one of the most extreme environments in our galaxy.
Posted November 30, 2023
Astrophysics
Astrophysics Division
Earth-like Exoplanets
Exoplanets
Goddard Space Flight Center
Hubble Space Telescope
Missions
Science & Research
Science Mission Directorate
Terrestrial Exoplanets

NASA’s Hubble Measures the Size of the Nearest Transiting Earth-Sized Planet

NASA’s Hubble Space Telescope has measured the size of the nearest Earth-sized exoplanet that passes across the face of a neighboring star. This alignment, called a transit, opens the door to follow-on studies to see what kind of atmosphere, if any, the rocky world might have. The diminutive planet, LTT 1445Ac, was first discovered by […]
Posted November 16, 2023
Nancy Grace Roman Space Telescope
Astrophysics
Black Holes
Earth-like Exoplanets
Exoplanet Detection Methods
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Missions
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Science & Research
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The Kuiper Belt
The Milky Way
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The Universe

Why NASA’s Roman Mission Will Study Milky Way’s Flickering Lights

NASA’s Nancy Grace Roman Space Telescope will provide one of the deepest-ever views into the heart of our Milky Way galaxy. The mission will monitor hundreds of millions of stars in search of tell-tale flickers that betray the presence of planets, distant stars, small icy objects that haunt the outskirts of our solar system, isolated […]
Posted October 24, 2023
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21
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221
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62
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11
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86
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15
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11
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5
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1
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3
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2
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1
RS-25
2
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1
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10
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15
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33
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6
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18
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3
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3
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4
ER-2
5
University Student Research Challenge
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198
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2
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59
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89
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1
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42
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33
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17
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3
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324
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10
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9
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8
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10
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54
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4
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94
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