A new infographic from Space.com details some of the highlights in our quest to know whether we're alone in the universe.
Another mind-bending discussion with Steve Guttenberg finds the guys discussing the existence of alien life and 20th century nostalgia. But first, Steve fake-pitches an idea for a new TV series to Russ and Jeff.
Strange signals picked up by the radio telescope pointed towards the stars in Parkes, Australia have a rather more mundane origin.
Among eight new Kepler planets found are the two most Earth-like to date, with possible conditions for the propagation of life.
A meteorite from Mars that landed on Earth in 2011 contains a carbon compound that is biological in origin.
Agents Scully and Mulder might have been on the right track believing in extraterrestrial life. The real-life Central Intelligence Agency publishes declassified UFO documents on its website.
The latest images from NASA's Curiosity rover show a dramatic 360-degree view of the first extraterrestrial sand dunes ever explored.
Yuri Milner, who backed Facebook and Twitter, says his search for extraterrestrial life is in "listening mode."
In a world where every human alive is desperately addicted to caffeine, you must discover what became of the crew of an extraterrestrial mining ship.
The extraterrestrial robot rolls 25 miles across the Red Planet, breaking a more than 40-year-old record for off-Earth mileage.