Life on Mars could have soaked in 3 billion year-old hot springs

Life on Mars could have soaked in 3 billion year-old hot springs

In recent years, the evidence for extensive water on the surface of Mars has continued to pile up, and, with it, the interest in the possibility that the red planet once supported life. But finding evidence of life that might have died out a few billion years ago poses a significant challenge, to put it mildly. Now, some researchers have identified an attractive place to look: apparent remnants of hot springs on an extinct volcano. On Earth, similar deposits have preserved indications of bacterial life.