Which process is credited with originally scattering the planetesimals out to the Oort Cloud?
Answer
Gravitational perturbation by forming gas and ice giants
The text explains that the substantial gravity of the massive gas and ice giants acted like celestial slingshots, severely perturbing small icy bodies and kicking them into wide orbits that settled in the Oort Cloud.
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The Oort Cloud: Crash Course Astronomy #22 - YouTube
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