From massive glaciers to sun-soaked beaches, national parks offer some of America’s wildest and most iconic landscapes.

One of Australia's best-known divers, Richard Harris, was among those given a rare glimpse below Mount Gambier's major water source and tourist attraction.

The agency’s scientists are still not saying they found fossils of Martian microbes, but analysis of the specimen collected ...

If there’s one of these planets that could potentially sustain liquid water on the surface, it’s probably that one.” ...

On this loop itinerary from Portland to central Oregon and back, you'll drive past cascading waterfalls, craggy canyons and ...

This very well could be the clearest sign of life that we’ve ever found on Mars,’ says acting Nasa administrator ...

“There is no evidence of microbes on Mars today, but if any had been present on ancient Mars, they too might have reduced ...

Ancient organisms may have left microscopic "biosignatures" on Mars. That's according to NASA scientists, who say a rock ...

NASA’s Mars rover Perseverance has uncovered rocks in a dry river channel that may hold potential signs of ancient ...

NASA and China are locked in an unprecedented competition to achieve humanity's first rocket launch from another planet's ...

Lunar minerals generate the rust mineral hematite when bombarded with high-energy oxygen particles, experiments show.

The 11th annual Ride the Rim event will return to Crater Lake National Park on Sept. 13. East Rim Drive will only be open to non-motorized recreation from 8 a.m. to 4 p.m. The entire East Rim Drive ...