Yuri Gagarin

Yuri Gagarin was a 20th century Soviet cosmonaut who became, as far as the majority of humanity was aware, the first human being to journey into outer space in 1961. (DW: The Seeds of Death)

The Seventh Doctor, Ace, Markus Creevy and Lt Raina Kerenskaya saw both Gagarin and Valentina Tereshkova, the first woman in space, on a podium in Red Square, Moscow at a ceremony marking the 50th anniversary of the October Revolution on 7 November 1967. (BFA: Thin Ice)