Alien worlds take center stage in an extraordinary voyage across the Milky Way, revealing planets far stranger than anything ...

The Milky Way’s Core: Could S0-6 Be an Alien Star?

R L Drake explores the Fermi Paradox: why, given the Milky Way's billions of potentially habitable planets and the Drake Equation's estimate of 12,500 possible ...

Researchers found radio telescopes have unknowingly surveyed millions of additional stars, revealing the search for alien ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A collision between ...

Fresh scientific findings highlight two major gaps in the hunt for alien life.

An unusual collection of stars may represent the remnants of a dwarf galaxy that the Milky Way devoured about 10 billion years ago. Astronomers have dubbed the ancient galaxy Loki, after the Norse god ...

"Milky Way season," when our galaxy's bright center is most visible, is now beginning in the Northern Hemisphere. The best time to see the Milky Way in the U.S. is generally from March to September.