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frozen [14]
3 years ago
8

What leads astronomers to believe that some large moons associated with the giant planets have compositions that are roughly hal

f water?
Physics
1 answer:
Sonja [21]3 years ago
8 0
<span>Astronomers are able to determine facts about the composition of these moons by examining the nature of light that is reflected from their surfacy using a method called spectroscopy. This process works because different materials tend to reflect light at different wavelengths So, by observing at which wavelengths a planetary body reflects light, astronomers are able to estimate its composition.</span>
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