A desolate, ruined world. Home of the oppressive Grineer Empire.
Earth is the first planet accessible to player and where the Grineer are the controlling faction.
The boss that used to reside on this planet was Councilor Vay Hek who used to drop components for the Oberon Warframe. Currently this planet has no specific target for assassination, making it a boss-less planet along with Eris. However, Vay Hek is fought on Earth, as well as defeating him rewards the Saviour of Earth achievement.