News tagged with digital dark

Cluster collisions switch on radio halos

(PhysOrg.com) -- This is a composite image of the northern part of the galaxy cluster Abell 1758, located about 3.2 billion light years from Earth, showing the effects of a collision between two smaller galaxy ...

Space & Earth / Astronomy

Aug 30, 2010 | 4.8 / 5 (9) | 0 |