Why do X-ray telescopes have to be placed in space satellites?
A)They are too sensitive to terrestrial radiation
B)They are too dangerous for astronomers to operate on the ground
C)The Earth's atmosphere absorbs cosmic X-rays
D)There is too much scattered sunlight in the Earth's atmosphere
E)The mirrors for X-ray telescopes are too large to operate on the ground

Question

Quizplus · Accepted Answer

The Earth's atmosphere absorbs cosmic X-rays, so X-ray telescopes can only be effectively used in space where they are not blocked by the atmosphere.

Why Do X-Ray Telescopes Have to Be Placed in Space