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.

Radio Programs

Planet Land A place to look for lots of planets Thursday, November 19, 2015
The Search Continues The search for planets continues Monday, April 13, 2015
Doomed Planets Doomed planets around a dying star Sunday, August 24, 2014
Planet Bonanza A plenitude of exoplanets Saturday, August 23, 2014
K2 Plan K2 from outer space Thursday, March 6, 2014
Double Duty A space telescope does double duty Wednesday, March 5, 2014
In-Between Planets Super-Earths and mini-Neptunes Tuesday, March 4, 2014
Kepler A space telescope piles up the planets Monday, March 3, 2014
Earths Galore Earth-like planets by the millions Saturday, February 22, 2014
HAT P-7 Cooling off a distant star Friday, August 16, 2013
Four Suns A world with four suns in the sky Friday, March 8, 2013
Planet Hunters Hunting for leftover planets Thursday, March 7, 2013
Ringing Beat The beat of vibrating stars Wednesday, March 6, 2013
Side Jobs A space telescope gets some extra jobs Tuesday, March 5, 2013
Superflares Super explosions on other stars Wednesday, January 23, 2013
Moon and Jupiter Tiny planets around a tiny star Sunday, March 25, 2012
Spinning Hearts The spinning hearts of giant stars Thursday, August 2, 2012
Kepler III Two ways to find planets Saturday, August 27, 2011
Kepler II Winnowing a list of possible planets Friday, August 26, 2011
Kepler I Watching for some stars to blink Thursday, August 25, 2011
Kepler 11 A star with a big family of planets Friday, April 22, 2011
Basket O' Planets A basketful of planets Thursday, April 21, 2011
Counting Planets II Keeping score in the search for planets Thursday, January 20, 2011
Counting Planets Adding to the planetary census Wednesday, January 19, 2011
Habitable Zones Looking for worlds with rainy days Tuesday, January 18, 2011

Featured Images

Artist's concept of a double sunset on exoplanet Kepler 16
Double Sunset Wednesday, March 5, 2014
Artist's concept of exoplanet system KOI-961, discovered by Kepler spacecraft
Worlds Galore Monday, March 3, 2014
Artist's concept of extrasolar planet Kepler 78b, an Earth-sized world
Hot Rock Thursday, October 31, 2013
Artist's concept of the Kepler-35 system, with a giant planet orbiting two stars
Seeing Double Wednesday, April 4, 2012
Artist's concept of the planetary system Kepler 11
Close Family Friday, April 22, 2011


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