In planetary classification, a class M planet or planetoid is characterized by an abundance of surface water and an atmosphere high in nitrogen, with oxygen and trace elements. Life is often abundant on class M planets; they contain extensive vegetation, animal life and often have native humanoids.

Examples of class M planets include Earth, Vulcan, Bajor, Romulus and Qo'noS.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.