What appears to be a single volcanic eruption is often the result of complex processes operating deep beneath the surface, ...

If you’re a scientist studying the surface of Mars, few discoveries could be more exciting than seeing recent gullies apparently formed by running water. And that’s what scientists believed they saw ...

Toss out that image of a Martian surface formed by spewing geysers and then rendered inert - encased in ice for more than a billion years. A new analysis of information gathered by the UA-led Phoenix ...

Two NASA rovers on Mars recently made two independent discoveries further indicating that ancient life may have once existed on the Red Planet. The U.S. space agency's Perseverance and Curiosity ...

The observation of small gullies on Mars was one of the more unexpected discoveries of the Mars Observer Camera (MOC) aboard the Mars Global Surveyor spacecraft. The characteristics of these gullies ...

Mars isn’t as arid as it may seem. Billions of years ago, the surface of the Red Planet rippled with oceans and rivers of liquid water, but now it seems that all of that fluid has disappeared, leaving ...

During a recent solar storm, NASA's Curiosity rover detected its highest-ever level of radiation reaching the surface of Mars. Reading time 3 minutes A recent outburst from the Sun sent a strong blast ...