For families that revel in outdoor extravaganza, Sedona, Arizona, is suited for many outdoor (sometimes indoor) activities.

The night-time ascent is the final highlight of this very Australian pilgrimage, the 230-kilometre Larapinta Trail from the desert city of Alice Springs through the West MacDonnell Range, a mountain ...

Using data from a Mars rover, a team of scientists have identified hidden layers of rock under the Red Planet's surface that ...

Strange, tilted geological formations spotted on Mars may be ancient beaches on the shore of a huge ocean, data from China's ...

Scientists have used orbiters and rovers to find dried streams, lakes, and gullies on Mars that hint at its watery past, but ...