A lone researcher may have figured out how Mars was able to support rivers and seas even after the planet had begun to grow cold and its atmosphere thin, and it's all thanks to a cycle of water ...

Credit: ESA/DLR/FU Berlin Thousands of hills and mounds on Mars have been found to contain layers of clay minerals, which formed when running water interacted with the rocks during a period when ...

That feature is Athabasca Valles, a system of valleys carved into volcanic plains on Mars. The Athabasca Valles system offers key insights into the history of water on the Red Planet, and its ...

New research has uncovered compelling evidence that over 4.4 billion years ago, Mars was home to hot water-rich environments. These findings, derived from a tiny zircon grain embedded in a Martian ...

Now, NASA’s Curiosity rover has identified two sets of ancient wave ripples on Mars, suggesting the presence of standing bodies of liquid water billions of years ago. Curiosity discovered the ...

"Extending the length of time that liquid water was present extends the possibilities for microbial habitability later into Mars's history," Claire Mondro, a Caltech postdoc who researches the ...