FEATURED IMAGE: 25 Jun 2015, 10:00 UTC | Giant Galaxy is Still Growing 30 June 2015, 12:43:04UTC RSS RSS | About | Contact | Site Map
Home » Press Releases » Kepler, Keck Telescopes Discover Earth-Size Exoplanets
Bookmark and Share
Keck Observatory

Kepler, Keck Telescopes Discover Earth-Size Exoplanets

20 Dec 2011, 21:06 UTC
Kepler, Keck Telescopes Discover Earth-Size Exoplanets

NASA’s Kepler mission, aided by the Keck I Telescope, has discovered the first Earth-size planets orbiting a Sun-like star outside our solar system. The planets, called Kepler-20e and Kepler-20f, are too close to their star to be in the so-called habitable zone where liquid water could exist on a planet’s surface, but they are the smallest exoplanets ever confirmed around a star like our Sun. The discovery marks the next important milestone in the ultimate search for planets like Earth. The new planets are thought to be rocky. Kepler-20e is slightly smaller than Venus, measuring 0.87 times the radius of…

Note: All formatting and links have been removed - click title or image to see full article.

Latest Vodcast

Latest Podcast

Advertise PTTU

Extrasolar Planets

  • Planetary Systems: 1222
  • Multiple Planet Systems: 484
  • Planets: 1932

NASA Picture of the Day

Astronomy Picture of the Day