Horizon

Description
A temperate world that hit the "sweet spot" for carbon-based life, Horizon has a nitrogen-oxygen atmosphere maintained by abundant indigenous photosynthetic plants and bacteria. While the native plants are very palatable to humans, the soil conditions are such that a handful of introduced Earth species have flourished, and the colonists must take strict care to prevent ecological disasters. Genetically engineered "terminator seeds" that grow nutritious but sterile crops to minimize outbreaks are the rule rather then the exception. Animals on Horizon appear to be exploding in diversity similar to during Earth's Cambrian period. Large flying insect analogs take advantage of the thicker-than-Earth atmosphere and low gravity to grow enormous. Microbial life has proven relatively benign; a series of vaccinations for the most virulent strains of soil-borne diseases is all that is required for a visit.

Additional Information
In Mass Effect 2, the human colony at Horizon comes under attack from the Collectors.

Mineral Deposits
Horizon is a mission world and cannot be mined.