my pod sustained significant damage , and the event could have been catastrophic due to the explosive decompression that occurred : my thruster pod 's door was left wide open while i was exploring the planet , and so the cockpit had assumed the atmosphere , and thus the atmospheric pressure , of the planet that i was on ; i , in my rush to escape , did not expel the air after sealing myself in , and so after the attack , which occurred at a high altitude , all of the air went through that holeand i almost went with it .