CNN —SpaceX’s Polaris Dawn crew is beginning its fifth day in orbit, having marked a few record-setting milestones on a historic journey — including the world’s first commercial spacewalk. Polaris Dawn crew member and SpaceX engineer Sarah Gillis emerges from the SpaceX Crew Dragon capsule during the first commercial spacewalk on Thursday. The Polaris Dawn mission's Crew Dragon capsule is seen Wednesday 870 miles (1,400 kilometers) above Earth — the farthest humans have traveled since the Apollo program over 50 years ago. The riskiest part of the journey may be over, but the Polaris Dawn crew still has a key milestone ahead: coming home. Polaris Dawn mission commander and Shift4 Payments CEO Jared Isaacman is seen anchored to a ladder dubbed the "skywalker" by SpaceX during his spacewalk.

---

Persons: CNN —, Elon, Jared Isaacman, Scott “ Kidd ” Poteet, Anna Menon, Sarah Gillis —, Gillis, —, Sarah Gillis, Isaacman, Bill Nelson, “, ” Nelson, Van Allen, mission's, Menon, NASA’s, Isaacman — Organizations: CNN, Polaris, NASA, Hubble, Telescope, Space, SpaceX, Elon Musk’s, Shift4, US Air Force, Polaris Program, International Space, Polaris Dawn Locations: United States, U.S, Florida, West, of Florida