- You may be looking for Pioneer (planet).
Cybernaut Zogron was considered by one Cyberman to be one of the pioneers of the Cyber-Empire. (COMIC: Junk-Yard Demon)
The Eleventh Doctor considered Neil Armstrong, Martha Jones, Jamie McCrimmon, Gia Kelly, and Mr Spoon to be "great moon pioneers" in a guide he wrote. (PROSE: The Doc's Side of the Moon)