Earth

"The cradle of humanity - a world of ancient glory, waiting to be retaken."

- In game description

Earth is the homeworld of the human species and is one of four terrestrial planets in the Solar System.

Overview
"Once our cities lit the whole world. Now we huddle under the shadow of the Traveler, in the last place it protects. It is so very fragile, this small blue ship, our home"

- Grimoire description.

In the wake of the Collapse, most of the planet's surface lies in ruins except for the Last City, which was built beneath the Traveler's protective aura. Earth is continuously threatened by various alien species who seek to claim it for their own ends. With the help of the Traveler's Light, the Guardians fight to protect humanity's home and retake its lost lands.

History
In the time before the Traveler, Earth had begun to suffer from overpopulation, and had become overcrowded.

The planet became occupied by the Red Legion during the Red War.

Americas

 * Brasília
 * Caracas
 * North American Empire
 * Manhattan Nuclear Zone—only mentioned by Cayde-6 and the Bounty Tracker
 * Old Chicago

Eurasia

 * European Dead Zone
 * Memento
 * Widow's Court
 * The Farm
 * Winding Cove
 * The Gulch
 * The Weep
 * The Sludge
 * Firebase Hades
 * Legion's Anchor
 * Echion Battledeck
 * Echion Control
 * Echion Hold
 * Sunken Isles
 * The Tunnels
 * The Pit
 * Outskirts
 * Scavenger's Den
 * The Dark Forest
 * Trostland
 * Maevic Square
 * Salt Mines
 * Terminus East
 * The Reservoir
 * The Drain
 * Widow's Walk
 * Mumbai Push
 * Old Russia
 * Cosmodrome
 * Bunker RAS-2
 * Bunker WAR-4
 * Devil's Spire
 * Dock 13
 * Exodus Blue
 * Forgotten Shore
 * Gateway
 * Jovian Complex
 * King's Watch
 * Lunar Complex
 * Mothyards
 * Refinery
 * Rocketyard
 * Seraphim Vault
 * Sector 618
 * Skyshock
 * Skywatch
 * Splicership Menkis-Syn
 * Terrestrial Complex
 * The Blast
 * The Breach
 * The Devils' Lair
 * The Divide
 * The Grottos
 * The Mine
 * The Steppes
 * Eastern Flood Zone
 * Rusted Lands
 * Plaguelands
 * Apex
 * Archon's Forge
 * Bunker Triglav
 * Cyclone 141G
 * Doomed Sea
 * Felwinter Peak
 * Foundry 113
 * Iron Temple
 * Forgotten Pass
 * Giant's Husk
 * Lords' Watch
 * Perfection Complex
 * Server Farm
 * Site 6
 * Splicer Battery
 * Splicer's Den
 * The Archon's Keep
 * The Warrens
 * Vostok Observatory
 * Vostok
 * Tibet

Africa

 * Old Accra

Unknown

 * The Last City
 * Bannerfall
 * Core District
 * Midtown
 * Military District
 * Tower
 * City Perimeter
 * Twilight Gap
 * Old Desert
 * Palamon
 * Dwindler's Ridge

Adventures

 * Dark Alliance
 * Devrim Kay Adventure
 * Reversing the Polarity
 * Poor Reception
 * Unsafe At Any Speed
 * A Frame Job
 * Getting Your Hands Dirty
 * Stop and Go
 * Anti-Anti Air

List of appearances

 * The Law Of The Jungle
 * Destiny
 * The Dark Below
 * House of Wolves
 * The Taken King
 * Rise of Iron
 * Destiny 2