Before spacecraft, how did astronomers determine the mass, size, and composition of the giant planets?
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Before spacecraft missions, how did astronomers determine the mass, size, and composition of the giant planets (Jupiter, Saturn, Uranus, and Neptune)? K. QureshiCalgary, Alberta Excellent question. Astronomers are often faced with seeking information about objects they cannot visit to examine. Instead, they use mathematical laws and observation to determine the characteristics of the planets. DeterminingContinue reading “Before spacecraft, how did astronomers determine the mass, size, and composition of the giant planets?”
The post Before spacecraft, how did astronomers determine the mass, size, and composition of the giant planets? appeared first on Astronomy Magazine.
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