A newly discovered doughnut shape in Earth's outer core may reveal elements that help drive the formation of the planet's ...

Scientists have solved the mystery of a puzzling seismic disturbance. First, there was an avalanche. Then, there was a ...

The Global Commission on the Economics of Water estimates that by 2030, the amount of freshwater available on Earth could ...

Stargazers were treated to a double dose of lunar spectacles in the night sky Tuesday. A partial lunar eclipse coincided with ...

It took about 70 people from 15 different countries and more than 8,000 exchanged messages to crack the case.

A US "ultra-endurance" cyclist has claimed a new world record for fastest woman to circumnavigate the globe by bike. Lael ...

People around the world were able to enjoy a supermoon and partial lunar eclipse Tuesday night into Wednesday morning.

Since the advent of geobrowser Google Earth, a number of strange and mysterious things around the globe are visible.

A bipartisan commission paints a devastating picture of political failure, strategic inadequacy, and growing American ...

It took Lael Wilcox 108 days to circumnavigate the globe. Improbably, she said it was “the most fun ride of my life.” ...

A century ago next Sunday, Chicagoans’ necks craned skyward looking for a single-engine Douglas World Cruiser bearing their ...

Wilcox, 38, rode 18,125 miles miles during her journey, which is slightly more than the circumference of the Earth ...