The Curiosity rover, currently wandering around on Mars, has located an indication of water activity that scientists say is important.
The rover has found much higher concentrations of silica--up to 90 percent--at some sites in the past seven months. The Marias Pass is one of them.
“These high-silica compositions are a puzzle. You can boost the concentration of silica either by leaching away other ingredients while leaving the silica behind, or by bringing in silica from somewhere else,” said Albert Yen, a Curiosity science team member at NASA’s Jet Propulsion Laboratory, in a statement.
“Either of those processes involve water. If we can determine which happened, we'll learn more about other conditions in those ancient wet environments.”
NASA; NASA
