"Because the gas planets are so big, they have enough angular momentum to keep them spinning at pretty much the same rate for billions of years," he said. ... "When I looked at the images, I found Neptune's rotation to be faster than what Voyager observed," Karkoschka said.
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"Because the gas planets are so big, they have enough angular momentum to keep them spinning at pretty much the same rate for billions of years," he said. ... "When I looked at the images, I found Neptune's rotation to be faster than what Voyager observed," Karkoschka said.
Because the gas planets are so big, they have enough angular momentum to keep them spinning at pretty much the same rate for billions of years.