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 ...
With a mass of 21 times that of the sun, the black hole of Cygnus X-1 challenges theories of stellar ...
A metal poor star located in the Milky Way galaxy, "just" 190 light years away from our Sun is 14.46+-0.80 ...