On Oct. 13, 1773, Charles Messier spotted the Whirlpool Galaxy (M51) for the first time. Writing of it a few months later, he ...

Scientists found unusual sulfur in moon samples from Apollo 17. The discovery reveals new clues about the Moon’s ancient ...

New research has found that amino acids, the building blocks of life, may have traveled to Earth on interstellar dust grains, ...

New observations from the James Webb Space Telescope hint that the universe’s first stars might not have been ordinary fusion ...

Nebulas are spectacular clouds of gas and dust where stars come to life and fade away. Their radiant beauty has captivated ...