Why are X-ray telescopes placed in space, but not on Earth’s surface?

Question

1. X-rays are too powerful and dangerous to be used on Earth.
2. Earth’s atmosphere deflects X-rays from space.
3. Earth’s surface releases X-rays into the atmosphere.
4. A telescope in space is closer to the planets and stars.

Answer 1

The main reason X-ray telescopes are placed in space and not on Earth's surface is:

2. Earth’s atmosphere deflects X-rays from space.

X-rays are absorbed by the Earth's atmosphere, which prevents them from reaching the surface. Therefore, to observe X-rays from astronomical sources, telescopes must be positioned above the atmosphere, in space, where they can directly detect these high-energy photons.