Planets

The Dalek Mod adds a number of new planets do explore that can be traveled to using the TARDIS. Here is a list of all the new planets.

Skaro
Skaro is the home planet of the Daleks. The entire planet is covered in mountains and veins of Dalekanium Ore which, when harvested will drop Dalekanium Nuggets that are used in many crafting recipies. You will also need a Radiation Pill to survive on Skaro because of its high level of radiation.

Varos
Varos is another mountainous planet. Zeiton 7 also generates on Varos.

Trenzalore
Trenzalore is a hostile planet where Whispermen will spawn. It also has very mountainous terrain. It was also removed at one point then re-added in the 1.12.2 version.

Gallifrey
Gallifrey is a peaceful planet where Time Lords will spawn. Gallifrey is in development so there aren't any generated structures on the planet.

Moon
The Moon is an empty rock orbiting around the Overworld that has no oxygen to breath. You will need a Space Suit to survive on this rock.