Altahe

This planet only becomes accessible after Noveria has been completed.

Description
Altahe is an exceptional form of planet called a Roche World. Put simply, it is one half of a pair of small and unusually dense terrestrial worlds (Altahe and Ontahe) that orbit each other so closely, they effectively share a single atmosphere. That does not mean one could fly from one to the other, but both have identical atmospheres and dust from one often can be found on the other.

Both worlds share an atmosphere of nitrogen and ethane. The surface is warm, and mainly composed of silica dust and dark basaltic rocks, with extensive deposits of heavy metals and radioactives. Tidal effects from Ontahe create constant heavy wind.

Initial points of interest

 * Listening Post: Guarded by, and filled with, rachni.

Discovered points of interest

 * Anomaly (0.4, 0.3): Recovering the probe will reveal one of the matriarch's writings as part of the UNC: Asari Writings assignment. You can listen carefully while near the wreckage to hear the rachni singing.
 * Rachni Colony (0.8, 0.3)
 * Escape Pod (0.75, 0.75)

Mineral deposits
Coordinates from 0 to 1, origin in bottom left of map, (horizontal, vertical).

Enemies

 * Rachni Workers
 * Rachni Soldier
 * Rachni Brood Warrior

These rachni appear regardless of whether or not you allow the Rachni Queen on Noveria to live, as they were sent to Depot Sigma-23 before the lockdown at Peak 15.