Casimir Station
From Halopedia, the Halo wiki
Casimir Station is a space station that is presumably in orbit of Reach.
Operation history
On the morning of August 30, 2552, Ensign William Lovell was in contact with Casimir Station, requesting a check on the sensors of the UNSC Pillar of Autumn, which was picking up unusual EM readings bouncing off Turul. Unbeknownst to the crew of the ship, which was being kept ignorant of the Covenant invasion, the readings were actually a result of battles occurring on the other side of the planet.[1]