William Shatner to be oldest astronaut at 90: How space tourism could affect older people

Is space really the final frontier? William Shatner is set to find out as he boldly goes where no 90-year-old has gone before. Some 55 years after Captain James T Kirk hit our screens in the original Star Trek, Shatner will launch to the edge of space aboard Blue Origin's New Shepard for a ten-minute sub-orbital flight.