Though he didn’t know it at the time, Schwarzschild had discovered what would later be called a “black hole.” We don’t have direct evidence that Schwarzschild and Einstein had known each ...

this new research gives credence to the theory of "Schwarzschild cosmology," which suggests that our galaxy is inside of a black hole, which, in turn, is located inside another, bigger parent ...

Over a century ago, a German physicist named Karl Schwarzschild mathematically described what we now recognize as a black ...