universetoday.com
Best Ever View of Andromeda in Ultraviolet
[/caption] Normally, the Swift satellite is searching for distant cosmic explosions. But recently it took some time to take a long look (total exposure time: 24 hours) with its ultraviolet eyes at the Andromeda galaxy, a.k.a. M31. The result is this gorgeous image. “Swift reveals about 20,000 ultraviolet sources in M31, especially hot, young stars … Continue reading "Best Ever View of Andromeda in Ultraviolet"
Nancy Atkinson