rivers on mars

Rivers on Mars Flowed for More Than a Billion Years

Rivers on Mars Flowed for More Than a Billion Years

The ancient climate of Mars is a mystery to scientists. Even with all we’ve learned about Mars, it’s still difficult to explain how lakes and rivers existed. A new study shows that Martian rivers were swollen with runoff and that they flowed far later into the planet’s history than previously thought.

Signs that Ancient Rivers Flowed Across the Surface of Mars, Billions of Years Ago

Signs that Ancient Rivers Flowed Across the Surface of Mars, Billions of Years Ago

Billions of years ago, Mars was likely a much warmer and wetter place than the cold, dry, barren world we see today. Whether there was life there or not remains an open question. But there’s a massive, growing wall of evidence showing that Mars may have had the necessary conditions for life in the past, including at least one system of river valley networks.