The shimmering dunes of White Sands National Park harbor an extraordinary secret: fossilized human footprints that suggest ...

Science history is littered with really cool ideas that turned to be wrong. Kepler's Mysterium Cosmographicum is one of my ...

Some killer asteroids were found only days before flyby. If they had struck Earth, the power of thousands of nuclear bombs ...

In the 21st century, America has seen enormous technological advances in outer space. At the same time, however, the public sector also seems rudderless.

How did humans become human? Understanding when, where and in what environmental conditions our early ancestors lived is ...