SUNSET: 
First-detected Black Hole is More Massive Than We Thought
A higher mass for Cygnus X-1, the first black hole to be discovered, challenges ideas about the evolution of massive stars.
Heavyweight Black Hole Find Mystifies Astronomers
Observations of a star have found it orbiting an unexpectedly massive black hole. If the discovery pans out, it would change our understanding of how massive stars die.
How “Light Echoes” Revealed a Black Hole’s Feeding Habits
Astronomers are taking a cue from bats, using a method similar to echolocation to map out the feeding environment around a black hole.
Our Galaxy's Center Might Hold Thousands of Black Holes
A new study has uncovered a dozen stellar-mass black holes within 3 light-years of the supermassive black hole at our galaxy’s core — and these might be just the tip of the iceberg.
Astronomers Decode a Black Hole Jet
Two telescopes — one on the ground and one in space — watched a black hole’s jet turn on, enabling astronomers to probe its origin.