Last updated on April 20, 2014 at 8:28 EDT

Getting to Know the Goldilocks Planet

March 30, 2012

NASA’s Kepler spacecraft is discovering a veritable avalanche of alien worlds. As the numbers mount, it seems to be just a matter of time before Kepler finds what astronomers are really looking for: an Earth-like planet orbiting its star in the “Goldilocks zone”.  credit:  NASA