Telescopes designed to study the earliest stages in galactic lives should be optimized for observations in .
A)infrared light
B)radio waves
C)X- rays
D)visible light

Question

Quizplus · Accepted Answer

Infrared light is best suited for studying the earliest stages of galactic life because it can penetrate the dust clouds that shroud young stars and planets. These dust clouds are opaque in visible light, but transparent in infrared, so by observing in this wavelength range, astronomers can see through the dust to study the formation of stars and planets in the early stages of galactic evolution. Radio waves and X-rays are also useful for studying specific phenomena in galactic evolution, such as black holes and supernova remnants, but they are not as useful for studying the overall process of galaxy formation.

Telescopes Designed to Study the Earliest Stages in Galactic Lives