Astronomers have found a new cosmic source for the same kind of water that appeared... read more
Posts Tagged: comet hartley 2
The EPOXI mission's recent encounter with comet Hartley 2 provided the first images clear enough... read more
Watch the movie made from images obtained by Nasa's EPOXI mission spacecraft showing an active... read more
Nasa's Deep Impact spacecraft is aiming its largest telescope at five stars in a search... read more