The Space Store » NASA

Everyone knows there is no oxygen in space. So how do the astronauts aboard the International Space Station (ISS) get their oxygen? The answer to this question is a little more complicated than one would expect.

For centuries, mankind has dreamed of visiting and living among the stars. Naturally, we must also be able to make the daily commute between planets and even solar systems should this ever become a new home for Mankind. But how to do this and how far can we go? Is it possible?

HAND SIGNED BY 2 ORIGINAL MERCURY ASTRONAUTS, JOHN GLENN AND SCOTT CARPENTER, COMMEMORATING THE SECOND AMERICAN ORBITAL FLIGHT. THE FIRST 2 AMERICAN ASTRONAUTS TO ORBIT EARTH!