Kepler spacecraft has discovered 100 previously unknown alien planets after it was repaired by Nasa scientists.
The aircraft suffered a major malfunction in May 2013, leaving it unable to focus properly.
Ian Crossfield, an astronomer from the University of Arizona, has announced the discoveries at the 227th Meeting of the American Astronomical Society. He said: “This is a validation of Kepler’s ability to find large numbers of true, bona fide planets.”
Although Nasa has spotted alien planets, it is not for sure whether extraterrestrial beings are living on them.