Astropath

These psykers are capable of transmitting messages across
the vast distances of space. Though frequently inexact,
arriving too late, and occasionally lost all together, these
psychic transmissions are the best means the Imperium has
of communicating across its enormous volume of dominion.
Astropaths are part of the Adeptus Astra Telepathica, an
Imperial organization dedicated to recruiting and training
psykers. Most astropaths are blind, a side effect of the agonizing
Soul Binding ritual which forms part of their initiation.