And it's not orbiting a planet.

When is a moon not a moon? That’s the riddle raised by a new study, and the solution appears to be “when it’s a planet.” Or ...

By Will Dunham WASHINGTON, July 22 (Reuters) - Scientists are documenting a planetary system in the Milky Way galaxy that is ...

Astronomers have discovered a rare planetary system 71 light-years away, where a Jupiter-sized world orbits a brown dwarf, ...

A mysterious and strange object discovered on a beach leaves people confused and curious. This unusual find sparks questions about its origin, creating buzz and speculation about what it could be.

A diver reported seeing what he called the "melancholy sight" of two women's bodies still locked together at the base of the ...

Passports became standardized booklets around 1920. Before that, identification had been proven via some strange methods.

Neither matter nor force, paraparticles would be something else entirely. Fresh hints that they exist are raising hopes that ...

A major discovery below the North Sea is "unlike anything ever found", authorities have now said. Norwegian scientists last ...

For decades, astronomers have pictured galaxies and their central black holes growing together. In the familiar story, a young galaxy forms first. Gas gathers. Stars ignite. Somewhere near the crowded ...

Experts identified the specimen as an upper left molar from Anancus arvernensis, an extinct relative of modern elephants. An 11-year-old boy in England recently made an unusual beach day discovery: an ...

There have been multiple hints of moons in other star systems, but none have been confirmed. The best evidence so far points ...