Jul 26, 2014 — Two large radio telescopes have detected very brief, powerful bursts of radio waves, and so far, scientists have no idea what's causing them.
Oct 16, 2013 — The Earth has existed for nearly 5 billion years and, to this point, no other forms of life have been identified in the seemingly boundless expanse of outer space. Commentator Marcelo Gleiser says this simple fact has deep implications for who we are and how we should treat life here on our home world.
Jun 5, 2013 — Last week NASA scientists put the space telescope Kepler in a kind of technological coma. The craft, designed to search for Earth-like planets orbiting stars in our cosmic neighborhood (within a few thousand light-years, that is), failed and seems to be unfixable. But it has left us with an undeniable legacy.
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.
Nov 8, 2011 — There's also "no credible information to suggest that any evidence is being hidden from the public's eye," the administration says. It was responding to an online petition asking that the government disclose any evidence of extraterrestrials.