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Chapter 15: Problem 28

What is the Oort cloud? How might it be related to planetesimals left over from the formation of the solar system?

Short Answer

Expert verified
The Oort Cloud is a hypothetical cloud of predominantly icy planetesimals predicted to surround the Sun at distances ranging to almost a light-year away. It is believed these bodies were remnants from the solar system's formation that were pushed to the edges by the gravitational forces of the planets.

Step by step solution

01

Definition of the Oort Cloud

The Oort Cloud is an extensive sphere of icy bodies considered to exist at the outermost edge of our solar system, far beyond the orbit of Pluto. It is named after Jan Oort, who first theorized its existence in 1950.
02

Explanation of Planetesimals

Planetesimals are the smaller precursors to the planets, leftover from the formation of the solar system. These are bodies formed from dust, rock, and other particulates that came together under the force of gravity during the formation of the solar system.
03

Link between the Oort Cloud and Planetesimals

The connection between the Oort Cloud and planetesimals could be that the Oort Cloud is composed mainly of planetesimals that were left over from the formation of the solar system. These planetesimals were likely scattered far into space due to gravitational interactions with larger bodies, eventually forming the Oort Cloud.

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