An artist’s rendering of the spacewalk on the Polaris Dawn mission
SpaceX
SpaceX’s Polaris Dawn mission marks a significant advancement in private space flight, showcasing capabilities that have long been possessed by government space agencies. A milestone of the mission was the inaugural spacewalk, also known as an extravehicular activity (EVA), carried out by non-government individuals, Jared Isaacman and Sarah Gillis, rather than traditional government astronauts.
This EVA was notably perilous due to the absence of an airlock in SpaceX’s Crew Dragon craft. Evacuating the entire capsule of air was necessary before Isaacman and Gillis could venture into the vacuum of space. The absence of seasoned astronauts on the crew, coupled with the debut of SpaceX’s new spacesuits and spacecraft in this scenario, further heightened the risk.
While the feat might seem unremarkable compared to the routine EVAs conducted on the International Space Station (ISS), SpaceX’s emphasis on safety and meticulous preparation is commendable. Laura Forczyk, a respected figure in the space industry, highlights the significance of undertaking new challenges, regardless of past accomplishments in the field.
The recent “stand-up spacewalk” by Isaacman and Gillis raised some public scrutiny, as the astronauts did not fully exit the capsule. Despite this, the successful testing of the new suits holds promise for the future of human space exploration. Additionally, the crew’s involvement in a series of health experiments aims to shed light on the physiological impact of space travel.
As civilian space missions like Polaris Dawn pave the way for diverse datasets in space health research, the potential for broader participation in space endeavors grows. By pushing boundaries and fostering innovation, SpaceX heralds a new chapter in space exploration, challenging the dominance of government space agencies.
Vocabulary List:
- Extravehicular /ˌɛk.strə.vɪˈhɪk.jə.lər/ (adjective): Occurring or being outside the confines of a vehicle especially in space.
- Milestone /ˈmaɪl.stoʊn/ (noun): An important event or stage in the development of something.
- Vacuum /ˈvæk.juːm/ (noun): A space devoid of matter particularly air.
- Meticulous /məˈtɪk.jə.ləs/ (adjective): Showing great attention to detail; very careful and precise.
- Physiological /ˌfɪz.i.əˈlɒdʒ.ɪ.kəl/ (adjective): Relating to the branch of biology that deals with the normal functions of living organisms and their parts.
- Perilous /ˈpɛr.ɪ.ləs/ (adjective): Full of danger or risk.
How much do you know?
Which individuals carried out the inaugural spacewalk on SpaceX's Polaris Dawn mission?
What was notably perilous about the EVA on SpaceX's Polaris Dawn mission?
Who highlighted the significance of undertaking new challenges in the space industry?
What did the recent "stand-up spacewalk" by Isaacman and Gillis aim to test?
What impact do civilian space missions like Polaris Dawn have on space health research?
What does the involvement of the crew in health experiments aim to shed light on?