Tim Hipps/U.S. Army IMCOM Public Affairs, Creative Commons license 2.0
Paul Chelimo, USA (left) and Mo Farah, Great Britain, medalists in the men's 5,000 meter run, Rio Olympic Games
Sreang Hok/Cornell University.
Lisa Kaltenegger, director of the Carl Sagan Institute, associate professor of astronomy and author of “Alien Earths: The New Science of Planet Hunting in the Cosmos,” said the thousands of exoplanets detected to date suggest there are “billions and billions” of possibilities for life beyond Earth.