SETI researcher Seth Shostak bets that we will find extraterrestrial life in the next twenty-four years, or he'll buy you a cup of coffee. He explains why new technologies and the laws of probability make the breakthrough so likely --...

Being the only observable intelligent life in the universe gets lonely sometimes, so it's no wonder we're trying to find something out there to phone home about.

Since 1992 radio telescopes have been scanning deep space looking for modulated radio signals. The type of radio signals we are familiar with can only be generated by intelligent beings but the huge amounts of data collected by the giant...

Scientists are considering whether Dyson Spheres, hypothetical megastructures built to surround stars and harness their energy for alien civilizations, could also be built around black holes.

Jason Wright, professor of astronomy and astrophysics at Penn State, has been thinking about the different technosignatures we could pick up using the telescopes we already have, and the telescopes that we could develop in the future.

Astronomer and historian Steven Dick tells us there are many approaches to consider and many questions we should ask ourselves to get ready, in case extraterrestrial life is found.