Support WBURSpace Probe Finds Ice In Mercury's CratersPlay03:04Download AudioJoe PalcaNovember 29, 2012 ShareResearchers say they have identified traces of ice in craters on Mercury, seen here in this Oct. 8, 2008, image from the Messenger spacecraft. (NASA)
Researchers say they have identified traces of ice in craters on Mercury, seen here in this Oct. 8, 2008, image from the Messenger spacecraft. (NASA)