The SETI (Search for Extraterrestrial Intelligence) Institute at UC Berkeley searches for "electromagnetic signatures of intelligent extraterrestrial civilizations, spanning wavelengths from radio to visible light, over ten orders of magnitude in characteristic time scale." Readers can explore the goings-on at SETI on this website. For instance, the SETI Projects tab provides descriptions of the six main projects the organization is currently running. The Great Debate is another great area, featuring a video of a public debate between renowned SETI scientist, Dan Werthimer, and skeptic, Geoff Marcy. Each side presents evidence for why we should - or shouldn't - believe that there really are other advanced civilizations in the Milky Way galaxy.