Pluto's icy mountains have caught the fancy of star gazers and cosmos geeks. But a question soon arose: "Is this made by AI?" ...

Hints of ancient microbes in Martian rocks and a revived theory about our cosmic ancestry are forcing scientists to rethink ...

Today in History for Jan. 2: In 1492, King Ferdinand of Aragon and Queen Isabella of Castile ended Muslim rule in Spain by conquering Granada, the last Muslim stronghold in the country.

Angela Hewitt urges awareness of carbon emissions' impact on climate and offers a 12 point plan that will help the planet's ...