How many feet above sea level can you describe it to be the edge of space?

Question

At what feet are you no longer in earth but in space???

Answer 1

100 km.

Answer 2

Sea Level On The Edge

Answer 3

From Wikipedia-

There is no clear boundary between Earth's atmosphere and space as the density of the atmosphere gradually decreases as the altitude increases. Nevertheless, the Fédération Aéronautique Internationale has established the Kármán line at an altitude of 100 km (62 miles) as a working definition for the boundary between aeronautics and astronautics. This is used because above an altitude of roughly 100 km, as Theodore von Kármán calculated, a vehicle would have to travel faster than orbital velocity in order to derive sufficient aerodynamic lift from the atmosphere to support itself. The United States designates people who travel above an altitude of 80 km (50 statute miles) as astronauts. During re-entry, roughly 120 km (75 miles) marks the boundary where atmospheric drag becomes noticeable, depending on the ballistic coefficient of the vehicle.

Answer 4

I am young as well, and I often sit on my roof just to gaze at the sky day and night. The stars can be overwhelming! Especially when you realize that you are seeing some light that is years old, yet only visible to you years later because it is so far away that light takes years to travel! I watch all the astronomy programs and read all the books I can get my hands on. I have tons of interests, but this one isn't waning any. I recommend you watch the Science channel, National Geographic and Discovery for some good astronomy programs to see how interested you might be in astronomy. Tuesday nights are astronomy nights on the Science channel. Also, you may find you have a passion for quantum mechanics and physics as I did. Theories like the string theory will blow your mind! There is nothing like being able to go into a field (blackholes for instance) in which you are unbound by conventional 'laws' of physics! I suggest any book by Michio Kaku; Stephen Hawking's Universer in a Nutshell and/or Brief History of Time; Anything written by Neal Tyson, Brian Greene; and Einstein's original writing of special and general relativity (you can get the book at any book store, just called General and Special Relativity. Enjoy your star-gazing!

Answer 5

Space is defined at an altitude of 62 miles, or 100 kilometers above the surface of our planet, but Earth's atmosphere gradually blends into the vacuum of outer space, and even at 300 miles, the Earth's tenuous exosphere contains some atoms of air.

Answer 6

The official definition is now 100 km.

1 km is 5/8 of a mile, therefore (5/8)*5280 ft.

100 km = 100*(5/8)*5280 feet

Answer 7

I would think it's perhaps 400,000 feet above sea level.
But it's probably 100 miles above Earth's surface, (about 25 miles/40km) further up.

Answer 8

Space is considered to start 60 miles up, I believe.

Answer 9

roughly 70,000 feet is the edge of space where one can see the curvature of the earth

Answer 10

if you take a taxi from NY to Tokyo, can you imagine how much you'll pay
ok, multiply that number million times then raise it to the power million ,
the number of feet you're talking about is much more than that