2006-07-04 09:00:36 · 6 answers · asked by babbydroolface 1 in Science & Mathematics ➔ Astronomy & Space
At 80,000 feet you then see light below and the blackness of space above.
2006-07-04 09:28:28 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I believe for the independent space race, the limit is set at 100 km. Perhaps someone can confirm that.
But in essence, the Earth's atmosphere thins out gradually with height, and does not end suddenly.
A test for space is that as the atmosphere thins, the daytime sky gets blacker - perhaps the limits of space should be set at a certain level of blackness of the sky.
If you had ever had a chance to fly Concorde (grounded now), it flew at nearly 20km up (60,000 feet) and even at that height the daytime sky was considerably darker, a beautiful purple color.
2006-07-04 09:20:44 · answer #2 · answered by nick s 6 · 0⤊ 0⤋
since the universe started from a point, the answer is the distance is zero. Zero every where, space has just expanded since that point.
2006-07-04 09:03:11 · answer #3 · answered by Eric N 2 · 0⤊ 0⤋
Approximately 100 miles. most orbital satellites are in an orbit about 150 miles out from the earth.
2006-07-04 09:09:07 · answer #4 · answered by Dusty 7 · 0⤊ 0⤋
This question cannot be answered, as no one truly knows where space began, or even if space "began" in one place at all.
2006-07-04 09:11:10 · answer #5 · answered by redandwhiteumbrella 1 · 0⤊ 0⤋
the earths atmosphere extends upwards 1000 km (exosphere), however the Karmin line is often used which is at 100 km (62miles).
2006-07-04 09:44:13 · answer #6 · answered by iconoclast_ensues 3 · 0⤊ 0⤋