Massive Black Hole Could Challenge Stellar Evolution Theories
With a mass of 21 times that of the sun, the black hole of Cygnus X-1 challenges theories of stellar ...
Tag: stellar-massive black hole
Cosmic wind blowing at 20,000 mph generated by black hole
Astronomers at NASA's Chandra X-ray Observatory have come across a true astronomical oddity at the outskirts of the Milky Way, ...