Solar System Glossary Definition (English)
Planetesimal Defined
The following is in context to Solar System, because it's common for a single word to have multiple meanings you will find additional research links near the bottom of the page.
"A small body of rock and/or ice — under 10 kilometers (6 miles) across — formed during the early stages of the solar system. Planetesimals are the building blocks of planets, but many never combined to form large bodies. Asteroids are one example of planetesimals."
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Additional Planetesimal Definition Starting Points
The following links are listed in alphabetical order. Please note we cannot guarantee Planetesimal definitions are contextually accurate to Solar System at third party websites.
