The MAIN reason for placing a telescope and scientific equipment into an aircraft to carry out infrared astronomy is to:
A) obtain photographs of resolution higher than can be obtained on the ground.
B) avoid stray IR radiation from the warm Earth and its occupants.
C) avoid the absorption of the IR radiation by water vapor.
D) obtain longer observing times on specific sources by moving in the direction of Earth's rotation.

Question

Quizplus · Accepted Answer

Placing a telescope in an aircraft allows it to fly above most of the Earth's atmosphere, particularly above the water vapor that absorbs infrared radiation, thus providing clearer observations.

The MAIN Reason for Placing a Telescope and Scientific Equipment