Thundera is the homeworld of the Thunderians.

Universe ThunderCats Universe
Class Terrestrial
Atmosphere Breathable
Primary Terrain Valleys, Seas
Notable Species Thunderians, Snarfs

It was destroyed at the beginning of the series. Mumm-Ra teleported to where Thundera once was and reformed it back together. Now it is inhabited by the ThunderCats and other surviving Thunderians.

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