Earth Notes
3:16 am
Fri May 18, 2007

Local Caves May Hold Martian Life Secrets

Flagstaff, AZ – Some of the Earth's most ancient creatures have been discovered deep in caves. They have survived there for centuries, protected from climate changes on the surface. Now a team of scientists from the USGS, Northern Arizona University, and NASA are trying to find out if caves on other planets could provide a similar refuge. Arizona Public Radio's Kevin Elston reports.