In order to observe gamma rays from space, astronomers must first
A) observe gamma rays, as they are still theoretical.
B) place a gamma ray telescope above Earth's atmosphere.
C) place a gamma ray filter on a visible light telescope.
D) build a very large diffraction grating.
E) build a very small telescope in order to detect such small wavelengths.

Question

Quizplus · Accepted Answer

Gamma rays are absorbed by Earth's atmosphere, so telescopes must be placed in space to observe them effectively.

In Order to Observe Gamma Rays from Space, Astronomers Must