The Kepler mission has been a great success up to now. The Kepler space telescope was created to search for solar systems with multiple planets, and the results have been astonishing so far. According to Ian o’Neil’s article on discovery.com :
“The number of known multi-planetary star systems has just tripled. What’s more, the Kepler space telescope science team has just announced that they have doubled the number of confirmed exoplanetary sightings made by the observatory.”
“Prior to the Kepler mission, we knew of perhaps 500 exoplanets across the whole sky,” said Doug Hudgins, Kepler program scientist at NASA Headquarters in Washington, D.C. “Now, in just two years staring at a patch of sky not much bigger than your fist, Kepler has discovered more than 60 planets and more than 2,300 planet candidates. This tells us that our galaxy is positively loaded with planets of all sizes and orbits.”
It seems that it’s only a matter of time before we find the first habitable planet – like earth- in a nearby star system. This could very well be the greatest discovery of all times !