Question

question
select the correct answer.
what advantage do space - based observatories have over ground - based observatories?
they are cheaper to build.
they are easier to control.
they can detect gamma rays, x - rays, infrared rays, ultraviolet rays, and radio waves.
they can gather solar energy.

Explanation:

Ground - based observatories are affected by the Earth's atmosphere. The atmosphere blocks many types of electromagnetic radiation such as gamma rays, X - rays, most infrared rays, and most ultraviolet rays. Space - based observatories are above the Earth's atmosphere. So they can detect a wider range of electromagnetic radiation including gamma rays, X - rays, infrared rays, ultraviolet rays, and radio waves. Building space - based observatories is very expensive (due to launch costs etc.), and they are not easier to control (communication delays etc.). Gathering solar energy is not their main advantage compared to ground - based observatories in terms of astronomical observation.

Answer:

They can detect gamma rays, X - rays, infrared rays, ultraviolet rays, and radio waves.