(Image: Misha Gravenor)
For 28 years, NASA astrobiologist Chris McKay has hunted for living things in the coldest and driest places on Earth. By studying Earth’s extreme environments, he hopes to better understand where missions like the Phoenix probe, due to land next month, should look for evidence of life on Mars. He talked to Anil Ananthaswamy after a trip to Antarctica’s Dry Valleys
What were you looking for in the Dry Valleys?
These are vast dry regions that were cut many millions of years ago by glaciers. We were trying to find frozen soil like that which the Phoenix…
