X Prize founder Peter Diamandis talks about how he helped Stephen Hawking fulfill his dream of going to space -- by flying together into the upper atmosphere and experiencing weightlessness at zero g.
In this passionate talk, legendary spacecraft designer Burt Rutan lambasts the US government-funded space program for stagnating and asks entrepreneurs to pick up where NASA has left off.
"Rock-star physicist" Brian Cox talks about his work on the Large Hadron Collider at CERN. Discussing the biggest of big science in an engaging, accessible way, Cox brings us along on a tour of the...
British physicist Stephen Hawking takes a flight in a specially modified jet to experience the weightlessness of space. The jet is designed to dive through the sky to give passengers an experience...
Bill Stone, a maverick cave explorer who has plumbed Earth’s deepest abysses, discusses his efforts to mine lunar ice for space fuel and to build an autonomous robot for studying Jupiter’s moon...
Educator Roy Gould and researcher Curtis Wong show a sneak preview of Microsoft’s WorldWide Telescope, which compiles images from telescopes and satellites to build a comprehensive, interactive...
Free of his wheelchair and tethered only to heart rate and blood pressure monitors, astrophysicist Stephen Hawking on Thursday fulfilled a dream of floating weightless on a zero-gravity jet, a step...
In keeping with the theme of TED2008, professor Stephen Hawking asks some Big Questions about our universe -- How did the universe begin? How did life begin? Are we alone? -- and discusses how we...
In keeping with the theme of TED2008, professor Stephen Hawking asks some Big Questions about our universe -- How did the universe begin? How did life begin? Are we alone? -- and discusses how we...
Prof Stephen Hawking speech to Campus Party 2006 Hawking's principal fields of research are theoretical cosmology and quantum gravity. In 1971, in collaboration with Sir Roger Penrose, he proved...
Accepting his 2005 TED Prize, inventor Robert Fischell makes three wishes: redesigning a portable device that treats migraines, finding new cures for clinical depression and reforming the medical...