ON THIS PAGE
You Might Also Like
When we talk about the enormity of the cosmos, it’s hard to wrap our minds around just how large, how far and how numerous celestial bodies really are. Also, what's a light-year anyway? Our video can help!
How Big Is Space?
Check out our interactive spacecraft model and see the latest stats from the mission.
Explore TESS, NASA's Latest Planet Hunter
With new NASA apps, you can take a selfie in space or tour a system of alien planets.
Share Space Selfies and Tour Exoplanet Surfaces
The seven Earth-size planets of TRAPPIST-1 are all mostly made of rock, with some having the potential to hold more water than Earth, according to a new study published in the journal Astronomy and Astrophysics.
New clues to compositions of TRAPPIST-1 planets
New results from the 229th American Astronomical Society meeting reveal that Earth-sized planets can be made of minerals that are distinctly not Earth-like.
Can garnet planets be habitable?
The ASTERIA satellite, currently in low-Earth orbit, is only slightly larger than a box of cereal, but it could help astrophysicists study planets orbiting other stars.
Astrophysics CubeSat demonstrates big potential in a small package
How did we get here? How do stars and planets come into being? What happens during a star’s life, and what fate will its planets meet when it dies? Come along on this interstellar journey through time.
Life and Death of a Planetary System
NASA’s Transiting Exoplanet Survey Satellite sent back a stunning sequence of serendipitous images showing the motion of a comet.
NASA’s planet-hunting TESS catches a comet before starting science
Scientists used NASA's Hubble and Spitzer space telescopes to find water "fingerprints" in the atmosphere of a hot, bloated, Saturn-mass exoplanet some 700 light-years away.
NASA finds a large amount of water in an exoplanet's atmosphere
NASA’s Transiting Exoplanet Survey Satellite (TESS), which will scan the skies to look for planets beyond our solar system—known as exoplanets—is now in Florida to begin preparations for launch in April.
10 things: Exoplanets 101
A star among planet hunters, Natalie Batalha wields a formidable weapon: NASA’s Kepler space telescope.
Role models, footsteps, and the search for life
A giant 'Tatooine' discovered by NASA's Kepler mission is the largest world yet discovered that circles two stars.
New planet is largest discovered that orbits two suns
A discovery one-ups Tatooine by finding twin stars which host three giant exoplanets.
Three giant worlds found orbiting twin suns
The Exoplanet Exploration website won its first People's Voice Award in the Weird category.
NASA web sites, social media honored in 2018 Webby Awards
NASA's efforts in digital communications have been recognized with nominations for six Webby Awards, the highest honor for online communications.
NASA nominated for six 2018 Webby Awards
The mission is the next step in NASA’s search for planets outside our solar system.
NASA’s Transiting Exoplanet Survey Satellite arrives at Kennedy Space Center for launch
Our nearest neighboring star Proxima Centauri bears a startling resemblance to our own sun, raising questions about conditions on its Earth-sized planet.
Proxima Centauri might be more sunlike than we thought
"I think when you find a question you’re interested in pursuing, be brave and pursue it." The co-lead of NASA’s Kepler space telescope, Jessie Dotson, has pursued asteroids and exoplanets, and a lot more besides.
A fearless astronomer behind a game-changing telescope
NASA's James Webb Space telescope will now revise its 2019 launch window to approximately May 2020.
New launch window under review
Hubble reveals that at least three of the TRAPPIST-1 planets do not seem to contain puffy, hydrogen-rich atmospheres similar to gaseous planets such as Neptune.
Hubble probes atmospheres of exoplanets in TRAPPIST-1 habitable zone
Astronomers have discovered two planets using NASA's Kepler telescope: a super Earth inferno and its Neptune-like companion.
Discovery alert! Iron-made super Earth
The knowledge and tools NASA has developed to study life on Earth will be a great asset to the study of planets beyond our solar system.
Our living planet shapes the search for life beyond Earth
A super Earth that scorches in extreme heat because it circles so close to its star.
Discovery alert! A sizzling super Earth
NASA researchers say they have passed a major milestone in their quest to detect the atmospheres of giant planets outside our solar system.
NASA team passes major technological milestone for characterizing exoplanets
The first science targets for the powerful Webb telescope have been announced, and they include the TRAPPIST-1 system.
Icy moons, galaxy clusters, and distant worlds! Oh my!
The flying SOFIA telescope has found a planetary system that has similar architecture to our own, in the system Epsilon Eridani.
SOFIA confirms nearby planetary system is similar to our own
NASA has selected 28 fellows for its prestigious Einstein, Hubble and Sagan fellowships.
NASA announces astronomy and astrophysics fellows for 2017
A team of scientists led by the Carnegie Institution for Science has released the largest collection of observations for hunting exoplanets to the public.
Scientists make huge dataset of nearby stars available to public
University of Warwick researchers have identified a white dwarf pulsar – a star type which has eluded astronomers for half a century.
Mysterious white dwarf pulsar discovered
The vortex coronagraph has the potential to image planetary systems closer to their host stars than any other instrument in the world.
New planet imager delivers first science
Go beyond what's possible; that's the Spitzer Space Telescope's motto. Designed for a two-year mission, 13 years later it's still searching the skies for new discoveries.
Spitzer Space Telescope begins 'Beyond' phase
The relatively nearby planet GJ 1132b may have an atmosphere despite being baked to a temperature of around 450 degrees Fahrenheit.
Venus-like exoplanet might have oxygen atmosphere, but not life
Astronomers have pinpointed which planets discovered by the NASA Kepler mission may sustain liquid water on their surfaces.
Astronomers help focus research in the search for another Earth
To find Earth-like planets, NASA will face a challenge that seems impossible: build a space telescope so stable, it moves less than the width of an atom.
The next generation of telescopes are almost impossibly accurate
A young star's stellar outburst brings its water snow line into view. The bizarre idea of snow orbiting in space is fundamental to planet formation.
Snow line discovered in bright baby solar system
Astronomers from UC Santa Cruz have found the first strong evidence of water vapor or ice in the the coldest known object outside our solar system– a brown dwarf five times the size of Jupiter.
Astronomers find water clouds in cold Jupiter-like object
How do some gas giant planets end up so feverishly close to their stars? NASA's Spitzer Space Telescope finds new clues.
In space 'Jupiter' planets burn hot, not cold
The organic molecule methyl alcohol (methanol) has been found for the first time in a young planet-forming disc.
First detection of methyl alcohol in a planet-forming disc
A team of astronomers has found that there are far more planets of the hot Jupiter type than expected in a dense cluster of stars called Messier 67.
Unexpected excess of giant planets in star cluster
Venus has an “electric wind” that may have played a significant role in stripping Earth’s twin planet of its oceans.
‘Electric wind’ can strip potential Earths of oceans, atmospheres
New research suggests that aging stars can warm previously frozen Hoth-like planets into supporting life.
Giant red stars may heat frozen worlds into habitable planets
Explore Alien Worlds
Exoplanet Travel Bureau
This set of travel posters envision a day when the creativity of scientists and engineers will allow us to do things we can only dream of now.
Strange New Worlds
Explore an interactive gallery of some of the most intriguing and exotic planets discovered so far.
A planetary tour through time. The ancients debated the existence of planets beyond our own; now we know of thousands.