For centuries – maybe millennia – humans have wondered how Mars gets its red hue, but a recent study has some answers.

The study revealed that another mineral, ferrihydrite, a water-rich ferric oxyhydroxide, is widely present in Martian dust ...

A world in warming, under most circumstances, tipping toward deep cooling does seem counterintuitive; yet, Earth's geological ...

With a wind speed of up to 80 mph, a brief tornado traveled for about one-third of a mile in Boyle Heights, a neighborhood on ...

Three boats were caught up in the developing sinkhole, measuring 50m in length and width, according to the service, which ...

Researchers at UC Riverside say they have identified a critical gap in how scientists have long understood Earth's carbon recycling system. By filling ...

Grand Canyon fossils in the Bright Angel formation reveal 500M-year-old animals with dual feeding structures, reshaping ...

Plankton play a central role in a climate process that scientists now say may behave more aggressively than once thought. As ...

In a new wrinkle, some dam opponents have noted that legally protected California condors have been flying not far from the reservoir site.

Mars may be tens of millions of kilometers away, but for planetary scientists, the most revealing rehearsal space sits in the ...

The Murcia tracksites confirm that straight-tusked elephants, Palaeoloxodon antiquus, crossed Spain’s southeastern coastal ...

Standing guard over the valley, Sentinel Rock’s near-vertical north face was carved by dramatic rockfalls that split the cliffside. Weathering and erosion continue to sculpt Yosemite Valley, and ...