Alaska (spaceship)

The Alaska was a spaceship that crashed into the Dalek Asylum and launched several escape pods to the planet's surface. There were at least two survivors: one of them was named Harvey, who died soon after on the frigid surface and was reanimated by the nanocloud field, becoming a Dalek puppet along with the other crew members who died on impact; the other was Oswin Oswald, who instead used a ladder to descend below the surface of the planet, but was captured and fully converted into a Dalek. However, she managed to retain her human consciousness within a delusion of life — believing she had set up camp in the cockpit of the Alaska — and it was this humanity that caused her to hack the Daleks' databanks in the real world, deleting all Dalek memory of the Doctor. (TV:  Asylum of the Daleks)

Behind the scenes

 * The two crew members who survived the crash, Harvey and Oswin Oswald, respectively bear the middle name and surname of Lee Harvey Oswald, who assassinated President John F. Kennedy on 22 November 1963, the day before Doctor Who premiered with An Unearthly Child.