You live in a galaxy packed with black holes that never announce themselves. They do not blaze in X-rays or glow with stolen ...

A high-altitude balloon telescope has revealed new patterns in X-rays emitted near the black hole Cygnus X-1. These signals give scientists a clearer picture of how gas and radiation behave in the ...

Astronomers have identified a star locked in a tight dance with a black hole that appears to be far quieter than theory says it should be, challenging long-held assumptions about how these extreme ...