The ripples suggest that the lake was free of ice at one point. Today, we know of Mars as a cold, dry desert, with patches of subterranean ice and ice caps at its poles. Billions of years ago ...

When a mudflat crumbles on Earth, or an ice sheet splinters on one of Jupiter's moons (Europa), or an ancient lakebed breaks ...

A study suggests Mars takes its red hue from a type of mineral that forms in cool water, which could reveal insights about whether Mars was ever able to support life.

Subsequent missions to Mars, however, provided evidence that ... "To make ripples by waves, you need to have an ice-free lake. Now we're saying we have an ice-free ocean. And rather than ripples ...

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It landed on what’s known as the Jezero Crater — a 28-mile-wide, dried-up lake ... of Mars could be crucial for future missions, Liu said. “Just like Earth, Mars has polar ice deposits ...

That liquid water has now all gone, either frozen into polar ice caps or as permafrost ... in an environment that was very similar to how Mars' dried-up lake- and river-beds are today.

A study using radar data from China's now-dead Zhurong rover finds strong evidence that Mars had a stable ocean ... one that wasn't just a temporary lake formed of melted ice, but a much larger ...

Scientists have used orbiters and rovers to find dried streams, lakes, and gullies on Mars that hint at its watery past, but ...

“This was a time of intense volcanic activity on Mars that likely triggered ice-melting events and interactions ... evidence for ferrihydrite in the lake sediments at (Mars’) Gale crater ...