NASA astronomers have witnessed the movement of the fastest ever comet seen so far and using Hubble Space Telescope clicked ...

U-M astronomers are helping study a fast-moving, ancient, and massive comet that formed beyond our galaxy. A group of ...

Scientists propose a laser-driven nanocraft to reach a black hole in decades, testing relativity and probing extreme gravity.

The scenario closest to the observations, the researchers determined, involved a massive dying star and a compact object such ...