Diagram highlighting areas of presumed lava channels on Mars Details from the Ascraeus channel (red), meandering across the surface of Mars. The insets in the black boxes show close-ups of some of the ...
The Perseverance rover recently drove through a primordial waterway on Mars, a place that once teemed with water. Credit: NASA / JPL-Caltech Long ago, a vigorous river filled an expansive Martian lake ...