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TESS (Transiting Exoplanet Survey Satellite)

Active Mission

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

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.

Latest NASA TESS News

Explore All NASA TESS News

NASA’s TESS Spacecraft Triples Size of Pleiades Star Cluster

Small Steps, Giant Leaps: Episode 162: 6,000 Exoplanets and Counting

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

Astronomers Map Stellar ‘Polka Dots’ Using NASA’s TESS, Kepler

NASA Citizen Scientists Find New Eclipsing Binary Stars

The Greater Pleiades Complex

Astronomers have revolutionized our understanding of a collection of stars in the northern sky called the Pleiades.

An oval view of the entire sky scattered with blue and yellow dots showing the known members of the Greater Pleiades Complex

Other TESS News

An object disintegrates as it orbits a star.

MIT: Astronomers Discover Planet That’s Rapidly Disintegrating

An orange planet orbits a distant star

MIT: Astronomers Spot Highly “Eccentric” Planet Becoming Hot Jupiter

Columns of planets with different labels

New Catalog Showcases Diverse Exoplanet Landscape with Strange, Exotic Worlds

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Galaxies

Black Holes

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Exoplanets