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Polaris Dawn mission: Blast off! SpaceX launches all-civilian crew for first privately-funded spacewalk

This marks the start of SpaceX’s five-day Polaris Dawn mission. Four civilians including billionaire Jared Isaacman are onboard

A SpaceX Falcon 9 rocket lifts off with Polaris Dawn, a private human spaceflight mission with two crew members expected to attempt the first-ever private spacewalk, at the Kennedy Space Center in Cape Canaveral, Florida | Reuters

Four astronauts have been launched into space, before carrying out the first privately-funded spacewalk, from NASA's Kennedy Space Center in Florida on Tuesday. It marks the start of the SpaceX's five-day Polaris Dawn mission.

Due to "unfavourable weather" the blast-off was delayed for almost two hours.  

ALSO READ | Human health in space: Charting the unknown on Polaris Dawn mission

The four crew onboard include billionaire Jared Isaacman, retired Air Force Thunderbirds pilot Lt Colonel Scott Poteet, and two SpaceX engineers--Sarah Gillis and Anna Menon. 

This is the first privately funded spacewalk. Earlier, only government-funded astronauts have carried out spacewalks.

The spacewalk is scheduled for late Wednesday or Thursday, midway through the five-day flight. Follow the mission here: https://www.spacex.com/follow-dragon

The plan is to spend 10 hours at that height filled with extreme radiation and riddled with debris before reducing the oval-shaped orbit by half. 

Isaacman and Gillis will take turns briefly popping out of the hatch and also test their white-black-trimmed custom suits and see how they’ll hold up in the harsh vacuum. 

Both will always have a hand or foot touching the capsule or attached support structure that resembles the top of a pool ladder. There will be no jetpack showboating and no dangling at the end of their 12-foot (3.6-metre) tethers. Only NASA's suits at the space station come equipped with jetpacks, for emergency use only.

Pilot Scott Kidd Poteet and SpaceX's Anna Menon will monitor the spacewalk from inside. Like SpaceX's previous astronaut flights, this one will end with a splashdown off the Florida coast.

SpaceX teamed up with Isaacman to pay for spacesuit development and associated costs.

William Gerstenmaier, SpaceX vice president said that we are starting to push the frontiers with the private sector. 

As SpaceX astronaut trainers, Gillis and Menon helped Isaacman and his previous team and NASA's professional crews prepare for their rides.

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