Innovative Spacewalk Conducted by Polaris Dawn Crew
ECNETNews reports that the recent Polaris Dawn mission by SpaceX marks a significant advancement in the realm of private space exploration. This mission included the historic first spacewalk, or extravehicular activity (EVA), performed by a crew of private individuals, setting a precedent in the industry.
Conducting a spacewalk was particularly challenging as the SpaceX Crew Dragon spacecraft lacks an airlock, necessitating the complete evacuation of the capsule’s air. This allowed two crew members, Jared Isaacman and Sarah Gillis, to step into the vacuum of space. This mission also served as the inaugural test for SpaceX’s new space suits, as well as the spacecraft itself under these conditions.
Though this accomplishment may seem less impressive compared to the routine EVAs conducted by astronauts aboard the International Space Station (ISS), it represents a notable milestone for private space missions. SpaceX is embarking on uncharted territory, necessitating a cautious and methodical approach to ensure safety, according to industry experts.
The EVA took place on September 12 and was executed successfully, although the characterization of the event as a traditional spacewalk has been met with some scrutiny, as the astronauts did not fully exit the capsule. Instead, they engaged in what is termed a “stand-up spacewalk,” peering out of the hatch. Experts noted that clearer communication would have benefitted public perception, although the private nature of the mission limited the need for extensive updates.
A primary aim of the spacewalk was to assess the new EVA suits, which have not undergone practical testing in decades. With NASA’s existing suit supply aging and limited, SpaceX’s success may pave the way for future collaborations. “This demonstration proves the safety of these suits in microgravity,” commented industry analysts, raising the question of whether SpaceX will consider selling them to NASA.
In addition to suit testing, the crew is participating in various health experiments designed to analyze the impact of space travel on the human body, including monitoring bone and muscle loss — a common concern for astronauts — and conducting comprehensive imaging studies upon their return to Earth.
Civilian missions, like Polaris Dawn, could significantly enhance our understanding of human health in space, as they allow for the collection of a diverse health dataset. This can aid in preparing for a future where more civilians can live and work in space.
While the spacewalkers may not represent the average civilian — with Isaacman’s previous spaceflight experience and Gillis’s role as SpaceX’s chief astronaut trainer — they are pioneers on this frontier. With successful execution of this EVA, experts predict that SpaceX will continue to push boundaries in space exploration.
Following the mission, the spacecraft is expected to return to Earth and splash down off the coast of Florida, where extensive research and evaluation will take place regarding the crew, their capsule, and the new suits. Although future flights in the Polaris program are not yet scheduled due to NASA’s recent decision, SpaceX’s growing capabilities may soon position them as a rival to longstanding government space agencies.
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