Organic Carbon on Mars Found to Come From Natural "Batteries"

For years, astronomers have wondered where the Red Planet got its organic carbon compounds, which are thought to be necessary for life as we know it on Earth. That organic carbon often comes from biological sources on Earth, but researchers have been working to figure out how they’re created on Mars. Now, a new analysis of Martian meteorites indicates that the organic carbon on Mars may have come from naturally-occurring “batteries.”