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10 answers

62 miles (100 km), also known as the Karman Line - http://en.wikipedia.org/wiki/Karman_line

2006-06-28 05:46:52 · answer #1 · answered by Anonymous · 0 0

The edge of space is conventionally defined as the altitude at which an earth orbit can be sustained. It works out to very near 100 km, so the value of 100 km is used because it's a round number.

So space is anywhere more than 100 km above sea level, which is 62 miles.

2006-06-28 13:42:24 · answer #2 · answered by Keith P 7 · 0 0

My own definition of space is where our atmosphere ends at about 100,000 feet or 20 miles. You could also use the end of our gravitational influence which is far beyond our moon (250,000 miles) or you could use the edge of our solar system (one to two billion miles). It depends upon what you want to define. I have heard it said that one of our first space ships, Voyager one, had left our solar system and was traveling into barren space. The point is there are many different ideas about the subject.

2006-06-28 12:53:22 · answer #3 · answered by FrogDog 4 · 0 0

It depends entirely on what you define as space

According to wikipedia there is no definitive boundary between the atmosphere and space.

in the US if you fly above 50 miles you are an astronaut while 62 miles up is more often considered the boundary between the atmosphere and space.

2006-06-28 12:48:25 · answer #4 · answered by joseFFF 3 · 0 0

.troposphere is 5-11 miles above. stratosphere is50 miles.ionosphere50-550 miles above and to answer your question space starts at 550 miles above the earth.

2006-06-30 15:14:13 · answer #5 · answered by Bighorn 4 · 0 0

62 miles straight up

2006-06-28 14:07:14 · answer #6 · answered by shiara_blade 6 · 0 0

zero miles. What would u say if some one asks the distance between your head and your body???. Aswer the same way.

2006-06-29 03:22:30 · answer #7 · answered by ravi0706 3 · 0 0

heres a clue: figure out the distance of the earth's atmosphere

2006-07-05 01:54:04 · answer #8 · answered by shaoween232 4 · 0 0

earth lies in space.

If you want the height of the atmosphere, that's different.

http://www.aerospaceweb.org/question/atmosphere/q0090.shtml
answers that question.

2006-06-28 12:46:25 · answer #9 · answered by bequalming 5 · 0 0

0.00000003 microns

2006-06-28 12:44:13 · answer #10 · answered by rekha c 3 · 0 0

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