Since Sputnik One launched in 1957, people have been putting satellites, rockets and stations into space and it's getting crowded up there with the stuff we use and the stuff we don't.

自从1957年发射“Sputnik一号”以来，人类一直在向太空输送卫星、火箭和电台，现在空间站都是我们的设备和其他国家的设备。