Macs J0025.4-1222 in 60 Seconds Plus
102 views · Published 12 April 2009 · 1:50 · Indexed 20 September 2026
Channel: Chandra X-ray Observatory · 2009 · Science & Technology
Two galaxy clusters, each a quadrillion times the mass of the Sun, collided to form the system formally known as Macs J0025.4-1222.