Future SETI: Looking for Alien Lasers, Gravity Waves

If you've ever seen the movie Contact, you'll know the alien-hunter stereotype: quirky, visionary loners who sit up all night listening to static, hoping for the signal that will change the world. That's probably not far off from real life, except that SETI (that's Search for Extra-Terrestrial Intelligence) scientists are getting creative. Here at the Astrobiology Science Conference, 2008, they're presenting new ways of looking for little green men, including watching for signs of alien lasers, infrared signals, and even gravity waves.