John Glenn, standing next to his Friendship 7 capsule in which he made his historic orbital flight, meets with President…
An artist's conception of one of the THEMIS spacecraft in orbit around Earth.
In additional to the five THEMIS spacecraft launched into space, 20 THEMIS ground stations can observe aurora from the ground.
APOD Science APOD APOD: 2012 February 17 – At… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss…
In this image taken on Jan. 25, 2012, the Aurora Borealis steals the scene in this nighttime photograph shot from…
APOD Science APOD APOD: 2012 February 16 – NGC… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss…
Craters appear well defined on icy Rhea in front of the hazy orb of the much larger moon Titan in…
Craters appear well defined on icy Rhea in front of the hazy orb of the much larger moon Titan in…
APOD Science APOD APOD: 2012 February 15 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss …
NASA Administrator Charles Bolden responds to a reporter's question during an overview briefing on NASA's fiscal year 2013 budget, Monday,…
