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SpaceX’s Polaris Dawn mission was a big step for private space travel. It included the first spacewalk done by non-government astronauts. Unlike the ISS, SpaceX’s craft didn’t have an airlock, so the crew had to let out all the air before going into space.
Although this seems simple compared to what NASA has done before, it was new for SpaceX. The spacewalk, on September 12, tested new suits and how the crew’s health is affected by space travel. The EVA critics say it wasn’t a real spacewalk because the crew didn’t fully leave the capsule.
Despite this, it’s a big achievement for SpaceX. The crew will now be studied to see how their bodies reacted in space. This mission shows that private companies like SpaceX are getting closer to doing what only government space agencies could do before.
The spacecraft will soon return to Earth, and more private space missions are likely in the future.
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Vocabulary List:
6 words · tap to reveal
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Accent
Spacewalk/ˈspeɪsˌwɔːk/noun
The act of leaving a spacecraft to work in space.
Airlock/ˈɛr.lɒk/noun
A sealed chamber that allows astronauts to move between the interior of a spacecraft and the vacuum of space without losing pressure.
Achievement/əˈtʃiːv.mənt/noun
A thing done successfully with effort skill or courage.
Mission/ˈmɪʃ.ən/noun
An important assignment carried out for political religious or commercial purposes.
Critics/ˈkrɪtɪks/noun
People who express an unfavorable opinion of something.
