Doctor Who Discovers the Conquerors

In 1978, Doctor Who Discovers the Conquerors was released by Target.

Cover blurb
On a chance visit to Earth Dr. Who discovers, much to his surprise, that the space-age has begun. In Dr Who Discovers Space Travel the Doctor traces the exciting story of the first astronauts, from Yuri Gagarin, the first man in space, to the historic Moon landings. And of course, there's a look at the future, too, as the Tardis hops into the 21st Century. Watch out for more titles in this series of illustrated Dr. Who books.