Professor Stephen Hawking says he is planning to travel into space on Richard Branson's Virgin Galactic. From a report: The physicist and cosmologist, 75, said he had not expected to have the opportunity to experience space but that the Virgin boss had offered him a seat. Discussing the meaning of happiness on Good Morning Britain, he said: "My three children have brought me great joy. And I can tell you what will make me happy, to travel in space. I thought no one would take me but Richard Branson has offered me a seat on Virgin Galactic, and I said yes immediately."