Utopia Project rocket
From Tardis Wiki, the free Doctor Who reference
The Utopia Project rocket was an immense rocket. Its purpose was to transport the last humans in the year 100 Trillion CE to the fabled planet of Utopia. Professor Yana and Chantho worked on the rocket, but stayed behind when the rocket finally launched. When the rocket landed, the humans found nothing but darkness. Presumably the other remaining outposts of humanity also launched passenger rockets from their home worlds to Utopia to make up six billion Toclafane.
The rocket used some kind of combusting fuel to power the engines, but due to its size, an immense "foot" was required to get it off the ground. (DW: Utopia)
