Where does the space begins?

Answer 1

around 45 km upwards,afer that u r in space.a space shuttle takes around 10 minutes 2 reach space.

Answer 2

Most people consider space to simply be the region above the Earth's atmosphere. But, there is no tangible boundary because the atmosphere gradually thins with increasing altitude. Traces of the gasses we breathe can be found over 100 miles above the earth.
As a comparison, passenger jets cruise at an average altitude of only 30,000 feet (5.7 miles), and the best military jets have a hard time climbing above 100,000 feet (a little less than 19 miles).

So, how do we define where space begins? Many different definitions exist. The United States awards astronaut status to anyone who flies above 50 miles in altitude. Many flight engineers, dealing with the effects of friction and heating of spacecraft due to atmospheric particles, define the boundary to be at 400,000 feet (75.76 miles). They call this the "entry interface," the point at which heating on reentry becomes observable.

Whichever definition you prefer, it is far, far above the level that humans can breathe.

Answer 3

READ it in Your Patience

Red shift and Cosmic ray shows that space has no begining. Alao it is endless.In the begining the whole matter was compressed to form a small sphere. Later it is exploded and started its expansion. The creation and destruction can be a cyclic process and there is only one space.
I think in another way. Consider a large number of foot balls. Each ball is filled with air. I take this one ball as our space and the air molecules as galaxies. Molecules have random motion . Likewise galaxies have motion. We consider this motion as the redshift.We may meet the far going galaxies in the future.I may take 1000s of years. If we think so there may be chance for space balls out side our space. That outside spaceball may contain an earth and life.

Answer 4

Space is sometimes defined as beginning at 50 miles above the surface. At that altitude, aircraft cannot control themselves with movable control surfaces because the air is too thin. Of course, the atmosphere has no defined cutoff point. It just gets thinner and thinner as get further and further from the planet's surface. So, "where space begins" is an arbitrarily defined elevation.

Answer 5

There is no clear boundary because the atmosphere gradually thins the higher you go.
The lowest artificial satellites can orbit at about 160km (100 miles) above the Earth - but even at this height traces of the atmosphere we breathe are enough to slow them down.

Other orbits:
-Space shuttle - 300 km (185 miles)
-International Space Station 350 km (220 miles)
-Passenger aircraft - 9 km (6 miles)

Answer 6

Space is very, very, very big and no one knows where it begins or where it ends. Some astronomers (these are scientists that study space) think that space started out as a very small thing that exploded and is continuing to expand. Some scientists belive that space will continue to expand forever and some scientists believe that space will eventually start to shrink into a very small spot and start all over again.

However, no one knows for sure.

Answer 7

outer space? or just space in general. and what are you calling space? emptyness?

an atom is made up electrons that have a low probablity of being in certain places within the atom. Therefore, there is quite a bit of empty space within an atom. If you're into string theory, same deal. space would be essentially infinitely small places. ie. everywhere.

Answer 8

Space As a substance just like atoms are enveloped substances ,so is space. It begins where it exists.

Answer 9

No one can answer that question.....my theory is that space starts where it ends like a circle that has no begining or end..

Answer 10

Space is same from all directions,hubble law and H-not(constant) says that...
Since the blue shift appears to be of very few objects we can consider that we aren't at the centre..
If u believe in M-theory......
Branes collided ,the maximum probility is at corners...as fluctuations are more there....