ORLANDO, Fla.–The Kepler space telescope has run out of fuel and will be retired after a 9-1/2-year mission in which it detected thousands of planets beyond our solar system and boosted the search for worlds that might harbor alien life, NASA said on Oct. 30.
Currently orbiting the sun 94 million miles from Earth, the spacecraft will drift further from our planet when mission engineers turn off its radio transmitters, the U.S. space agency said.
