Kepler Space Telescope

  • It is an unmanned space observatory
  • Launched in 2009 by NASA
  • It aims to detect Earth-like planets in the Milky Way galaxy
  • It does not probe the environmental conditions of planets
  • It works by observing a dimming in the light of a star, known as a transit, each time an orbiting planet passes in front of it
  • Why in news? It has discovered 10 earth like planets outside our solar system.