Question

a) Discuss the advantages of using a small telescope in Earth orbit rather than using a large telescope on the surface of the Earth.

b) Discuss the advantages of using a large telescope on the surface of the Earth rather than using a small telescope in Earth orbit.

Answer 1

If we take telescope on earth surface then we are not able to measure the small wavelength signal. Because all such signals are absorbed by the earth ionosphere or troposhere. So in the final we are not gonna observe these signal on earth surface. But with the satellite there will not be any effect of earth ionosphere.

Ground-based telescopes have much to offer. They can be built bigger and for less money. They're easier to maintain and upgrade. Also they have a much lower risk of being damaged by one of the 500,000 pieces of debris flying through the cosmos or space junk.