• SpaceX's Polaris Dawn mission, launching on August 26, aims to achieve several historic firsts, including the first private spacewalk and reaching the highest Earth orbit since Apollo.
• The four-member crew, led by Jared Isaacman, will conduct scientific experiments and test SpaceX's new spacesuits during their five-day mission.
• Polaris Dawn will not dock with the ISS but will operate independently in Earth's orbit.
• The mission has philanthropic goals, raising funds for St. Jude Children's Research Hospital, and aims to advance space exploration technology.