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Webb's firsts keep coming: Observations of the exoplanet WASP-39 b show fingerprints of atoms and molecules, as well as signs of active chemistry and clouds.
NASA's Webb Reveals an Exoplanet Atmosphere as Never Seen Before
New observations show that a previously identified exoplanet, TOI-1075 b, is among the most massive super-Earths found so far.
Discovery Alert: Massive Planet is a 'Hulk' among Super-Earths
A new study of the "super-Earth" GJ 1252 b shows that the planet likely has a very minimal atmosphere or, possibly, no atmosphere at all.
Discovery Alert: Ultra-hot 'Super-Earth' Could Have No Atmosphere
A newly discovered 'super-Earth' lies in the habitable zone around its star, and appears to be in a prime position for further atmospheric investigation.
Discovery Alert: A Rocky 'Super-Earth' in the Habitable Zone
Webb ushers in a new era of exoplanet science with the first unequivocal detection of carbon dioxide in a planetary atmosphere outside our solar system.
Webb Sees Carbon Dioxide in Exoplanet's Atmosphere
A "super-Earth" discovered using the TESS satellite might be a "water world," though more observations are needed.
Discovery Alert: Intriguing New ‘Super-Earth' Could Get a Closer Look
The James Webb Space Telescope will examine the "lives" of exoplanets, from formation through maturity and eventual demise.
Exoplanets: What NASA Will See with the Webb Telescope
Webb captured the distinct signature of water, along with evidence for clouds and haze, in the atmosphere surrounding a hot, puffy gas giant planet orbiting a distant Sun-like star.
Webb Reveals Steamy Atmosphere of Distant Planet in Detail
Two newly discovered "super-Earths" are rocky worlds – and could be ideal candidates for follow-up atmospheric observations.
Discovery Alert: Two New, Rocky Planets in the Solar Neighborhood
The detection of 30 comets in another solar system – exocomets – could shed light on the formation of our own system of planets.
Discovery Alert: 30 'Exocomets' Orbit a Familiar Star
An international team of astronomers confirms 60 new exoplanets, or planets orbiting other stars; a separate study finds tentative evidence of an “exomoon.”
Discovery Alert: A Flood of New Planets, Plus Hint of an ‘Exomoon'
The count of confirmed exoplanets just ticked past the 5,000 mark, representing a 30-year journey of discovery led by NASA space telescopes.
Cosmic Milestone: NASA Confirms 5,000 Exoplanets
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.