History of Cleansing

Cleansing is a Battleground on the Cosmodrome added in Season of the Chosen (available from February 16, 2021). In vengeance for their homeworld, the Cabal attack a Hive nest dug deep into the Cosmodrome; you fight through a facility swarming with Hive. It was a Vanguard Ops activity and part of the seasonal challenges.