For decades, astronomers have searched for signs of extraterrestrial intelligence using radio telescopes and optical ...

Researchers may have finally cracked the age-old mystery about the origins of Earth's water, and the answer might be related ...

On August 24, 2006, Pluto ceased to be considered a planet. A mixture of rock and ice located in the Kuiper Belt, a region of icy objects beyond the orbit of Neptune. This demotion ...