(Tau Ceti V)
Gallifrey (Tau Ceti V) is the only known world in the Tau Ceti system with life more complex than microorganisms. As it stands, Gallifrey's ecosystem appears to be recovering from a Permian-style extinction event; the continents are largely desertified, with the oceans showing signs of rapid anoxia in the recent past.
The planet has two moons, which the members of the Soviet Air Force's 2014 Tau Ceti expedition christened Master and Doctor.
The Soviet Air Force established an automated weather station on Gallifrey as part of their 2014 Tau Ceti expedition.