a four-person crew of civilians on board spacex's Polaris Dawn Mission are preparing to unlock the hatch of their capsule and make history as the first group of non-government astronauts to conduct a space walk SpaceX is hosting a live webcast of the event also known as an extra vehicular Activity Set to kick off at 5:58 a.m. eastern time the Polaris Dawn crew are Anam Menan Scott kid potite Jared ISAC man and Sarah Gillis the entire SpaceX crew Dragon vehicle propelling and protecting the crew will be depressurized and exposed to the vacuum of space a dangerous and historic milestone in the Polaris Dawn crw 5-day journey through Earth