Why have we not yet found proof of alien life? According to astrophysicist Avi Loeb, we simply haven't dedicated the proper resources. Diving into unidentified phenomena such as the Oumuamua asteroid, he explores his scientific search for extraterrestrial technology, envisioning a future where ...

Is there life beyond Earth? Join NASA's director of planetary science James Green for a survey of the places in our solar system that are most likely to harbor alien life. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading ...

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. At TEDxSanJoseCA, he explains why new technologies and the laws of probability make the breakthrough so likely — and forecasts how the discovery of ...

Written language, the hallmark of human civilization, didn't just suddenly appear one day. Thousands of years before the first fully developed writing systems, our ancestors scrawled geometric signs across the walls of the caves they sheltered in. Paleoanthropologist and rock art researcher ...

Visit http://TED.com/shapeyourfuture to watch more groundbreaking talks from the TED Fellows. Astrophysicist and TED Fellow Sarah Rugheimer searches for aliens -- but not the cartoony green kind. She's looking for extraterrestrial microbes by studying how these single-celled organisms emit ...

Douglas Vakoch is the Director of Interstellar Message Composition at the SETI Institute, as well as the only social scientist employed by a SETI (Search for Extraterrestrial Intelligence) organization. Dr. Vakoch researches ways that different civilizations might create messages that could be ...

Visit http://TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more. Aliens have invaded ancient history: they've cropped up in humanity's past through popular television and movies, displacing facts with absurd yet commonplace ...