Polaris program

Lore & Background

The Polaris program was organized by entrepreneur Jared Isaacman, who previously commanded the Inspiration4 mission, the first all-civilian spaceflight. Isaacman contracted with SpaceX to establish the program, which includes two missions using SpaceX's Crew Dragon spacecraft and is planned to culminate in the first crewed launch on Starship. The first mission, Polaris Dawn, launched on 10 September 2024, carrying Isaacman and a crew of three—Scott Poteet, Sarah Gillis, and Anna Menon—to an elliptical orbit 1,400 kilometers from Earth, the farthest anyone had been since NASA's Apollo program. They passed through parts of the Van Allen radiation belt to study health effects of space radiation, and later in the mission Isaacman and Gillis completed the first commercial spacewalk, testing SpaceX's EVA spacesuit.

The second mission will launch via a Falcon 9 Block 5 vehicle with a Crew Dragon 2 capsule. SpaceX and Polaris had studied a crewed mission to lift the Hubble Space Telescope into a higher orbit, but this option was rejected by NASA in June 2024. Data from Polaris Dawn will inform the objectives and timing of Mission II. The third Polaris mission was set to be the first crewed launch on Starship, which was in early flight testing as of May 2026 and was expected to carry crew after at least 100 successful cargo flights, though this was not a firm requirement. After being nominated to be Administrator of NASA, Isaacman pledged that, if confirmed, he would cancel his contract with SpaceX for the additional missions, to remove a potential conflict of interest.

Reader's Guide

The Polaris program represents a significant step in private spaceflight, demonstrating the ability of a non-governmental entity to organize and execute complex missions, including the first commercial spacewalk. Its missions have pushed the boundaries of human spaceflight, reaching the farthest distance from Earth since the Apollo program and conducting scientific research on space radiation. The program's planned culmination with the first crewed Starship launch highlights the growing role of private companies in deep-space exploration. However, the program's future was thrown into uncertainty when its organizer, Jared Isaacman, was nominated to lead NASA and pledged to cancel remaining missions to avoid conflicts of interest with SpaceX, a major NASA contractor. This situation underscores the evolving relationship between private spaceflight and government agencies, where entrepreneurial ambitions can intersect with public service and regulatory concerns.

Did You Know?

• Polaris Dawn reached an orbit 1,400 kilometers from Earth, the farthest anyone had been since NASA's Apollo program.
• The first commercial spacewalk was performed during Polaris Dawn by Jared Isaacman and Sarah Gillis.
• A proposed Polaris mission to boost the Hubble Space Telescope's orbit was rejected by NASA in June 2024.
• After being nominated as NASA Administrator, Jared Isaacman pledged to cancel his SpaceX contract for remaining Polaris missions if confirmed.