It appears that space was created in the Big Bang, 13.8 billion years ago and has been expanding ever since. The overall shape of space is not known, but space is known to be expanding very rapidly due to the cosmic inflation.
Space, also known as outer space, is the area directly outside of Earth's atmosphere. Space technically begins at the Kármán Line, which is about 100 km or 62 miles above the Earth. Unlike Earth, there is no air in space, which is why astronauts have to wear high-tech spacesuits to travel there.
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