No one knows why quasars flicker — but astronomers are using these wavering beacons to "weigh" the black holes that power them.
The post How Sloppily Black Holes Eat Reveals Their Mass appeared first on Sky & Telescope.
No one knows why quasars flicker — but astronomers are using these wavering beacons to "weigh" the black holes that power them.
The post How Sloppily Black Holes Eat Reveals Their Mass appeared first on Sky & Telescope.