Welcome to Gaia! ::

* Reach - Glassed by the Covenant in 2552, terraformed to be habitable by 2589.
* Circumstance - Unknown status, likely to have been glassed by the Covenant.
* Tribute - Glassed by the Covenant in 2552.
* Beta Gabriel - Unknown status, likely to have been glassed by the Covenant.

Sol system

* Earth - Controlled under UNSC.
* Mars - Unknown status, most likely to have survived.
* Jupiter - Unknown status, most likely to have survived.
* Pluto - Controlled under UNSC.

Ectanus 45 system

* Chi Rho - Unknown status.

Unknown system

* Skopje - Glassed by the Covenant in 2547.

I would consider the moon to b apart of earth (Not really, im just to lazy to do it right now XD but i might do it later, if i fee like it)