The storm predicted for tomorrow will put 600 or so man-made satellites at some risk.
Since 1957 hundreds of man-made satellites have been circling the earth.
The idea of a man-made satellite has been around for a long time.
There are also man-made satellites orbiting something other than the Earth.
As of 2011, there are 931 operational, man-made satellites orbiting the Earth.
How can a viewer tell if a moving object is a man-made satellite?
This was the first man-made satellite ever to enter orbit.
How many man-made satellites are there now revolving around the Earth, do you know?
The last question was to name the first man-made satellite.
Sputnik 1 was the first man-made satellite to go around the Earth.