Mar 6, 2013 — As scientists advance their understanding of how the Earth has changed through billions of years, it becomes increasingly clear that the Earth and the life on it are entwined in unique ways. Commentator Marcelo Gleiser goes in search of the origins of life in a meeting of the minds at CERN.
Oct 31, 2012 — NASA's Kepler Mission has been spotting many "Earth-like" planets within our galactic neighborhood. But what fraction of these Earth-like planets are really like our planet? The more we learn about Earth's remarkable properties, the rarer our planet seems to be. And with it, the life it hosts.