Join NASA Senior Scientist David Grinspoon as he answers intriguing questions about astrobiology. Discover where astrobiologists work, the chances humanity isn't alone, credible UFO sightings, secrets of Area 51, and whether life ever existed on Mars. This engaging video by WIRED provides scientific insights into the universe's most compelling mysteries. Perfect for curious minds eager to explore the realm of astrobiology and the possibilities of extraterrestrial life.