A collection of TED Talks (and more) on the topic of astronomy.
Video playlists about Astronomy
Way, way out there
Travel across the universe (or is it universes?) as star-gazing speakers share stunning images of Saturn's rings, haunting sounds from distant black holes and an infectious sense of wonder about what lies beyond our skies.
Are we alone in the universe?
Is Earth really the only life-sustaining planet in existence? These speakers think there might just be something or someone else out there, and urge us not to stop the search.