Optical and radio telescopes are built on ground but X-rays astronomy is possible only from satellites orbiting the earth. Why?

Explanation

The earth can receive visible and radio waves coming from the extra-terrestrial objects as the atmosphere can transmit these rays. But the atmosphere absorbs X -rays and hence an X-ray telescope cannot receive these signals when set up on ground. Thus an X-ray telescope has to be set up in a satellite orbiting the earth.