NASA has narrowed the list of candidates down to three space rocks for an ambitious mission to capture an asteroid and tow it to the moon, where it can be explored by astronauts. The three contenders were picked from a larger list of 14 objects.
NASA has narrowed the list of candidates down to three space rocks for an ambitious mission to capture an asteroid and tow it to the moon, where it can be explored by astronauts. The three contenders were picked from a larger list of 14 objects.