Far infrared astronomy must be done from high-flying aircraft because
A) far infrared radiation is absorbed low in Earth's atmosphere.
B) far infrared photons are quite energetic.
C) far infrared telescopes are not very heavy.
D) far infrared sources are very bright.
E) none of the above.

Question

Quizplus · Accepted Answer

Far infrared radiation is absorbed by water vapor and other gases in Earth's atmosphere, making it necessary to conduct far infrared astronomy from high-flying aircraft or space observatories.

Far Infrared Astronomy Must Be Done from High-Flying Aircraft Because