Javascript Tree Menu by

Where does the Earth end and space begin ?

Have you ever wondered where the Earth ends and outer space begins?

Turns out the border sits 118 kilometers (or 73.2 miles) above our planet, according to a paper published in the Journal of Geophysical Research-Space Physics this week. How can scientists say definitively? One of the differences between Earth and space centers on how well particles are treated. We subject matter in the Earth’s upper bounds to a nice, gentle wind. The Wild West of space, however, tends to be a more violent place where flows of charged particles can reach 1,000 kph (621 mph).