M81 (right) and M82 (left) are two interacting galaxies in the constellation Ursa Major. Tidal forces from M81 are deforming M82 causing massive star formation in M82. This much higher than normal star formation classifies M82 as a starburst galaxy. #astrophoto
The Virgo galaxy cluster is about 65 Mly away. It forms the centre of a larger galaxy supercluster of which our own Galaxy is a member. This mosaic image is from the Rothney Astrophysical Observatory 0.5m Baker-Nunn telescope. Each square is 4° on a side. #astrophoto
It may be Pi day at work... Show more
It may be Pi day at work...