Polaris Dawn Mission Launch Delayed by Helium Leak
Polaris Dawn Mission Launch Delayed by Helium Leak
Next Launch Opportunity is Wednesday Afternoon
SpaceX has delayed the launch of the Polaris Dawn mission until Wednesday afternoon (ET). Perhaps somewhat ironically, the cause of the delay is a helium leak.
"Teams are taking a closer look at a ground-side helium leak on the Quick Disconnect umbilical. Falcon and Dragon remain healthy and the crew continues to be ready for their multi-day mission to low-Earth orbit," the company said on X Monday night.
There are two additional launch opportunities within the four-hour window at 5:23 a.m. ET and 7:09 a.m. ET. If needed, backup opportunities are available on Thursday, August 29 at the same times, according to SpaceX.
The Dragon spacecraft supporting this mission previously flew Crew-1 to and from the International Space Station, and Inspiration4, the first all-civilian mission to orbit. This will be the fourth flight for the first stage booster supporting this mission, which previously launched Crew-8 and two Starlink missions. Following stage separation, Falcon 9’s first stage will land on the A Shortfall of Gravitas droneship stationed in the Atlantic Ocean.
During their multi-day mission to orbit, Dragon and the crew will endeavor to reach the highest Earth orbit ever flown since the Apollo program and participate in the first-ever extravehicular activity (EVA) by commercial astronauts wearing SpaceX-developed EVA suits. They will also conduct 36 research studies and experiments from 31 partner institutions designed to advance both human health on Earth and during long-duration spaceflight, and test Starlink laser-based communications in space.
The Polaris Dawn crew will combine their expertise, knowledge, and passion for spaceflight to further human space exploration. This will be the first human spaceflight for Mission Pilot Kidd Poteet, Mission Specialist Sarah Gillis, and Mission Specialist and Medical Officer Anna Menon. Mission Commander Jared Isaacman previously flew to space as commander of Inspiration4. This will also be the first time two SpaceX employees will be part of a human spaceflight crew, providing valuable insight to future missions on the road to making life multiplanetary.