Most galaxies are thought to play host to black holes. At the center of Centaurus A, a galaxy 12 million light years away, a jet is being fired out into space. Images that have been captured by NASA’s ...
By searching sparsely populated regions of the galaxy, astronomers have for the first time found the source of a kind of signal that has puzzled them for years.
The star AG Carinae is battling gravity and radiation to prevent self-destruction, surrounded by a vast shell of gas and dust. Its nebula spans about five light-years, roughly the distance to Alpha ...
A supermassive black hole can tear apart a star. NASA's Chandra X-ray Observatory and other telescopes have identified a supermassive black hole that has torn apart one star .