Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a ...

Could an Egyptian coffin, dated 5,000 years ago, hold the answer to one of the night sky’s greatest mysteries? University of ...

Scientists have detected the collision of two massive black holes merging beyond the Milky Way. The two black holes, each ...

The Andromeda Galaxy (M31) is one of the most fascinating objects in our night sky and is located relatively close to the Milky Way, making it an important focus for astronomers. This spiral galaxy, ...

Scientists predict up to 100 invisible galaxies may orbit the Milky Way, hiding just beyond our current detection limits.

A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...

Imagine a star powered not by nuclear fusion, but by one of the universe’s greatest mysteries—dark matter. Scientists have ...

New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite ...