If the Universe is so old, and stars so abundant, why aren't we overrun with intelligent aliens? Could they actually be hiding in our own Solar System? Dr. Jill Tarter of the SETI Institute explains why we must still search vigorously.
Credit: SPACE.com
Featured Videos
-
Black Holes: Warping Time & Space
When a super-massive star dies, it's corpse collapses into a knot so tight not even light can ...
-
Star Trek's Warp Drive: Are We There Yet?
Marc Millis, former head of NASA's Breakthrough Propulsion Physics ...
-
How to Time Travel?
But how can you swim upstream in the river of time? Physicists ...
-
How the Sun Will Die: And What Happens to Earth
Five or so billion years from now, Earth's present orbit won't be a ...

