This gas needs an enormous amount of energy to shine — more than normal stars can supply. The discovery, based on data from ...

The latest discovery marks the first-ever "compelling clue" that a black hole may be present in the enigmatic galaxy, ...

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the discovery of a planet about twice the size of Earth orbiting its star ...