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At this point there is no edge of the universe, mostly due to the fact that the universe is expanding rapidly (moving outward).
There is no clear boundary, but the 100km Kármán line (62 miles up) is generally regarded as the boundary of outer space. Here, a vehicle would have to travel faster than its orbital velocity to...
Kochab is approximately 126 light years (or 39 parsecs) from the Earth.
About 62 miles, or 100 kilometres, is the generally accepted distance.
About 25 million miles away from earth.