How Far Away Is Space

Hence at this altitude human survival requires a pressure suit or a pressurized capsule.

How far away is space. There is no firm boundary where space begins. Since then more than 550 people have blasted themselves into the deep black abyss although not all agree on how far up you need to go until you hit space so there is no internationally accepted. This distance can change however and has varied from 205 miles 330 km to a planned maximum of 248 miles 400 km. There are billions of galaxies the most distant of which are so far away that the light arriving from them on earth today set out from the galaxies billions of years ago.

In december of 2012 astronomers announced a hubble space telescope discovery of seven primitive galaxies located over 13 billion light years away from us. Nasa sets the boundary at 76 miles. This survey called udf12 used hubble s wide field camera 3 to peer deeper into space in near infrared light than any previous hubble observation. By the same token space is often defined as beginning at the lowest altitude at which satellites can maintain orbits for a reasonable time which is approximately 160 kilometers 100 miles above.

September 07 2020 most of the time the international space station iss is orbiting the earth at an altitude of approximately 220 miles 354 km which places it in low earth orbit leo. At or above the armstrong line fluids in the throat and lungs boil away. The space industry lists 62 miles. The deeper we see into space the more galaxies we discover.

The results are from survey of the same patch of sky known as the ultra deep field udf. Others place the marker at an astronomical 13 million miles. It is located at an altitude of around 19 14 km 11 89 mi. Beyond our own galaxy lies a vast expanse of galaxies.