The Fédération Aéronautique Internationale has demarcated the Karman Line – which lies at an altitude of 100 kilometers (330,000 feet; 62 miles) above the Earth’s sea level – as the boundary where space begins. But, NASA spokesperson Dan Huot explains from a physical science’s perspective that “there is no hard-definable point where space begins; the atmosphere just gradually decreases the higher you get.” So, where does space actually start? Watch Seeker explains in the video.
ScienceSwitch 
Space will always be a mystery to me. With only dust and gases out there, and heat radiating from low-gravity planets and moons, you’d think it would be hot out there – instead, you’d freeze.
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Ebullism – the formation of bubbles in body fluids due to reduced ambient pressure – is the worse I can imagine. I also read space is extremely cold, but instant freezing wouldn’t happen because the vacuum would cause heat to transfer away from the body very slowly. Death would be extremely painful.
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Thank you. At my age, I continually forget some of my education. [getting old isn’t for wimps!!]
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Don’t mention it. 😛
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Space begins when you get divorced and the ex takes all her shoes out of the closets.
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That’s sad, and funny at the same time. 😛
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