What is reach of halo?

Answer:
Reach was a UNSC colony, and the last defense for earth. In Halo: Reach, the Covenant finds Reach and attacks it. The planet gets destroyed, and not 2 minutes after the UNSC ship Pillar of Autumn discovers Halo.
First answer by ID3411983375. Last edit by KillerODST. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 2 [recommend question].