Big Picture Science – Anthropocene and Heard: Doug Vakoch
by Gary Niederhoff on April 1, 2013
Part 4 of Anthropocene and Heard, featuring Doug Vakoch, director of Interstellar Message Composition at the SETI Institute, on the last few variables in the Drake Equation: intelligent life, civilization, and longevity.
Could your favorite Earthling also be your favorite Martian?
Allow me to respond: The answer is "yes." It's possible that billions of years ago, tiny bits of biology quit the Red Planet and infected ours. If so, your family tree -- and that of every other terrestrial life form -- has its deepest roots not in the ancient oceans of Earth, but... (read more)