"Dust devils themselves are difficult to capture in images because they are so short-lived," Ingrid Daubar, a planetary scientist at Brown University and lead author of the study, told Space.com by email. "The tracks they leave behind last longer, so we are able to observe them more thoroughly."

A sweeping orbital survey charted over 9,320 miles (15,000 kilometers) of riverbeds winding etched into Noachis Terra, a broad plateau in the planet’s southern highlands. Searching the fluvial sinuous ridges.

The new images by the Curiosity rover on Mars show "dramatic evidence" of ancient groundwater in crisscrossing low ridges, NASA said.

Your blood is also red because of a mixture of iron and oxygen in a molecule called hemoglobin. So in a way, the ancient connection between the planet Mars and blood wasn’t completely wrong. Rust, which is a common form of iron oxide found here on Earth, also often has a reddish color.