A Bet and a Black Hole
Astronomers at the Harvard-Smithsonian Center for Astrophysics confirm the presence of a black hole in the constellation Cygnus.
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Articles tagged astronomy
Hypervelocity Stars
Stars escaping the Milky Way help Warren Brown and other astronomers map the distribution of matter in our galaxy.
11.1.10
The Oldest Object
A star more than 13 billion years old
9.1.09
Perseus in 3-D
New three-dimensional PDF technology allows Harvard astronomers—and you—to explore worlds hundreds of light-years away.