Galaxies Hit Single, Doubles, and a Triple (Growing Black Holes)
When three galaxies collide, what happens to the huge black holes at the centers of each? A new study using NASA’s Chandra X-ray Observatory and several other telescopes reveals new information about how many black holes are furiously growing after these galactic smash ups.
Roman Space Telescope Could Image 100 Hubble Ultra Deep Fields at Once
Some of the Hubble Space Telescope’s most iconic images are the deep fields, which unveil myriad galaxies across the universe, stretching back to within a few hundred million years of the big bang. The galaxy tapestry was uncovered by Hubble peering at a single patch of seemingly empty sky for hundreds of hours.
On the Hunt for a Missing Giant Black Hole
Astronomers are searching for signs of a supermassive black hole in the galaxy cluster Abell 2261. Scientists think this galaxy underwent a merger with another galaxy, which could have caused a newly formed larger black hole to be ejected. Astronomers do not yet know what happened to this giant black hole.
Galaxy Survives Black Hole’s Feast – For Now
The hungriest of black holes are thought to gobble up so much surrounding material they put an end to the life of their host galaxy by creating an energetic object called a quasar. Now, researchers found a galaxy that is surviving the black hole’s ravenous forces, continuing to birth about 100 Sun-sized stars a year.
Echo Mapping in a Black Hole Accretion Disk and Torus (Animation)
Matter swirling around supermassive black holes creates bursts of light that "echo" in nearby dust clouds. These traveling signals could serve as a new cosmic yardstick.
Milky Way's Black Hole's Flash Illuminated Gas Far Outside Our Galaxy
About 3.5 million years ago, the supermassive black hole at the center of our Milky Way galaxy unleashed an enormous burst of energy. Now, eons later, astronomers are using NASA's Hubble Space Telescope's unique capabilities to uncover even more clues about this cataclysmic explosion.