Kepler Astronomers Discover Ancient Star with Five Earth-Size Planets
Tuesday, January 27, 2015 - 10:30
in Astronomy & Space
Iowa State's Steve Kawaler is part of a team that used data from NASA's Kepler spacecraft to find an 11.2 billion-year-old star with at least five Earth-size planets. That means Earth-size planets have been forming for most of the history of the universe.