"Doctor Who arrived on TV screens in 1963. Since then, across light-years and through millennia, the journeys of the Time Lord have shown us alien worlds, strange life-forms, futuristic technology and mind-bending cosmic phenomena. Viewers cowered terrified of Daleks, were amazed with the wonders of time travel, and travelled through black holes into other universes and new dimensions." "The breadth and imagination of the Doctor's adventures have made the show one of science fiction's monumental success stories. BBC Focus editor Paul Parsons explains the scientific reality behind the fiction."--BOOK JACKET.