Mysterious gullies on the surface of Mars, long puzzling scientists, appear to have been carved by burrowing blocks of CO₂ ...

For decades, scientists have been curious about how much water Mars once had and what led to its gradual transformation into ...

What can Mars’ red hue that’s been observed for thousands of years teach us about when water existed on its surface potentially millions, or even billions, of years ago? This is what a recent study ...

When did liquid water exist on Mars and what can it tell us about when, or if, life ever existed on the Red Planet? This is what a recent study published in Geochemical Perspective Letters hopes to ...

New data is challenging what scientists previously knew about one of the youngest geological features on the Red Planet. That feature is Athabasca Valles, a system of valleys carved into volcanic ...

(CNN) — A mineral trapped within a Martian meteorite that fell to Earth has revealed traces of water on Mars that date back 4.45 billion years, according to new research. The zircon grain may contain ...

For our science news roundup from Short Wave, NPR's science podcast, I'm joined by Emily Kwong and Jessica Yung. Hey there. EMILY KWONG, BYLINE: Hi, Ari. JESSICA YUNG, BYLINE: Hi. SHAPIRO: All right, ...

For decades, scientists have theorized about how Mars reached its current state. Many believe that the Red Planet's surface may have once been covered in rivers and oceans. But, if that's really the ...

Mars may have once hosted an ocean with waves that lapped against sandy beaches 3.6 billion years ago, according to new research. China’s Zhurong rover and its ground-penetrating radar detected the ...

Mars is tantalizingly similar to Earth in many ways, but especially in its surface features, which often resemble Earth deserts to an eerie degree. Both Earth and Mars share features such as valleys; ...

Time was, Earth may not have been the solar system’s only garden planet. For its first billion or so years, Mars was partly covered in water, as dry ocean basins and riverbeds on its surface now ...