NASA has narrowed the list of candidates 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 space agency's plan aims to bring a 23-foot-wide space rock into...
NASA has narrowed the list of candidates 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 space agency's plan aims to bring a 23-foot-wide space rock into...