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TESS (Transiting Exoplanet Survey Satellite)

Active Mission
TESS Instruments

NASA’s TESS discovers exoplanets, worlds beyond our solar system. In the course of its extended observations of the sky, TESS also finds and monitors all types of objects that change in brightness, from nearby asteroids to pulsating stars and distant galaxies containing supernovae.

Type

Space telescope

Launch

April 18, 2018

Wavelength

Visible light

Status

Extended mission
Learn More About Exoplanets
Featured Video

Primary Mission Complete, TESS Extends its Exploration

NASA’s Transiting Exoplanet Survey Satellite (TESS) completed its two-year primary mission and continues its search for new worlds. Learn about some of TESS’s most interesting discoveries so far.

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Latest TESS News

Explore All TESS News
Article
6 Min Read

NASA Research To Be Featured at American Astronomical Society Meeting

Article
4 Min Read

Discovery Alert: A Rare Glimpse of a Newborn Planet

6 Min Read

NASA’s TESS Spots Record-Breaking Stellar Triplets

Article
4 Min Read

Talented Teams Tackle Toasty Planet

Article
5 Min Read

NASA’s TESS Finds Intriguing World Sized Between Earth, Venus

Article
A timeline of exoplanet exploration, discoveries, and missions, 1984 to the present.
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