Massive stars about eight times more massive than the Sun explode as supernovae at the end of their lives. The explosions, ...
Astronomers have lost a star. This is not carelessness, but the possible discovery of a rare stellar event in the Andromeda ...
A star that winked out of view could be a “failed supernova,” a stellar explosion that petered out instead of fully detonating, a new study reports. If real, the failed supernova would mark the birth ...
Now that may sound big, but Sagittarius A* is small compared to other supermassive black holes. Take the one at the center of our neighbor the Andromeda galaxy, which has a diameter of 516 million ...
Active galaxy—A galaxy with an unusually strong output of energy, thought to be powered by a supermassive black hole in its core. Andromeda Galaxy—The nearest large spiral galaxy to the Milky ...
Fastest Known Planetary System May Have Been Pushed by Our Galaxy’s Supermassive Black Hole ...
How do you satiate the hunger of a supermassive black hole? With light-years-long rivers of cosmic dust, astronomers say. Scientists have found evidence of remarkably long dust streams spiraling ...
speculates what it might take for the area around the black hole to be active again. explains that in time, galactic cannibalism will occur when the Andromeda galaxy is 2 million light years away ...
Japanese scientists argue that the Milky Way's black hole is shaped like an elongated oval rather than like a "doughnut." ...
The black hole’s mass is over half that of all the stars in the surrounding galaxy, a record for any galaxy hosting a quasar.
The spiral arms of nearby galaxy Messier 81 is captured by NASA's Spitzer Space Telescope. This galaxy is easily visible ...