Mars rover, Opportunity, is driving to a new study area after a dramatic finish to 20 months on "Cape York" with examination of a rock intensely altered by water.
Astronomers have spotted the most distant massive star explosion of its kind, a supernova that could help scientists better understand the nature of the universe.
We were too far away to try to stop it. All we could do is watch, helpless, horrified, and secretly delighted, as the event unfolded beyond our reach.
An analysis of a rock sample collected by NASA's Curiosity rover shows ancient Mars could have supported living microbes.
The space agency will hold a press conference to reveal the results of the analysis of the grey-green dust it drilled from a rock on 8 February.
NASA's Mars rover Curiosity has completed initial experiments showing the mineralogy of Martian soil is similar to weathered basaltic soils of volcanic origin in Hawaii.