A fire occurred at the lab, which produces pool and spa chemicals, in 2020. An investigation by the U.S. Chemical Safety and Hazard Investigation Board found that a "thermal decomposition event ...
Anna “Walker” Menon in space. Credit: Polaris Dawn crew, Flickr CC BY-NC-ND 2.0 On September 12, 2024, SpaceX’s Polaris Dawn astronauts completed the first commercial spacewalk in history.