The mission aims to reach an altitude over three times higher than the International Space Station, showcasing advancements in commercial space exploration.

SpaceX's Polaris Dawn mission is scheduled to launch on August 26, marking a significant milestone as it aims to conduct the first commercial spacewalk with a crew of four private astronauts, including billionaire Jared Isaacman.

The crew consists of pilot Scott 'Kidd' Poteet and mission specialists Sarah Gillis and Anna Menon, both of whom are engineers at SpaceX.

During the five-day mission, the team will explore the effects of radiation on human health in space while reaching altitudes of up to 870 miles, entering parts of the inner Van Allen radiation belt.

The spacewalk is planned for three days into the mission at an altitude of 435 miles above Earth, where two crew members will exit the capsule for up to 20 minutes.

Isaacman and Gillis will conduct a two-hour spacewalk to test a new spacesuit, which is crucial for future long-duration missions.

SpaceX's EVA spacesuit is an evolution of the IVA suit, designed for improved mobility and thermal management, and will be used for the first time in this mission's environment.

Extensive testing has been conducted on the Crew Dragon to ensure it can withstand the mission's radiation exposure and other risks.

The crew has been training for two years and is currently in the final week of preparation, which includes zero-gravity flights and altitude chamber exercises.

This mission represents a significant achievement for private space exploration and will test the capabilities of the new spacesuits.

The launch will occur from Kennedy Space Center using a Falcon 9 rocket, with a planned five-day stay in space before a parachute-assisted splashdown return.

Isaacman emphasized the importance of developing low-cost, reliable spacesuits for future space travel, particularly for missions to the moon and Mars.