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Kepler Mission

Kepler is a roughly 1-meter-diameter telescope that is staring at 150,000 Sun-like stars in the constellations Cygnus and Lyra. It will watch those stars for about three and a half years continuously, without ever closing its eyes. Kepler will look for events called transits, in which a planet briefly passes in front of its parent star, blocking a little bit of the star’s light. The goal is to find Earth-size planets around Sun-like stars.

Featured Images

graphic showing statistics on the first 5,000-plus known exoplanets

Exoplanet Totebar August 28, 2023

Looking for Life December 17, 2018

Farewell to a Planet Hunter October 31, 2018

Radio Programs

5,000 Planets The music of the spheres — exoplanet style August 28, 2023

Kepler 90 A smashed-together solar system January 15, 2022

Kepler-444 A tight family of ancient planets December 18, 2020

More Kepler New discoveries from a dead mission March 8, 2019

Kepler A prolific planet hunter March 7, 2019

Future Cannibal A future act of stellar cannibalism May 6, 2018

Heartbeat Stars Watching stars change shape February 6, 2017