My search for proof aliens exist (Ted Talks Daily Podcast) - Astrophysicist Avi Loeb talks about the possibilities of alien civilisations existing in other places in the universe, and describes an expedition he led to find reminents of the first detected interstellar asteroid that crashed into the ocean in the last few years. It’s quite a humorous talk, scientists can be quite funny too :), definitely worth the listen. www.ted.com #