NOUN
- one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
How To Use planetesimal In A Sentence
- As planetesimals grow still larger, their gravitational attraction increases, allowing them to become even more effective at accreting nearby planetesimals.
- Planet cores and terrestrial rocky planets would accrete from the planetesimals.
- When the planets formed 4.6 billion years ago, they formed from an agglomeration of many planetesimals, or small solid celestial bodies.
- These results suggest that the physical structures of comets may be described as strengthless agglomerations of gravitationally bound planetesimals with a bulk density between 0.5 and 1.0 g/cm.
- The Kuiper belt and Oort cloud are populations of icy planetesimals located beyond the orbit of Neptune.
- Asteroids are small bodies in space - the numerous leftover planetesimals from which the planets were made nearly 4.6 billion years ago.
- With all those Masonic symbols on its cover, I figured that CULTS, CONSPIRACIES AND SECRET SOCIETIES stood a small chance of being captured by THE LOST SYMBOL's commercial gravity, much as a tiny planetesimal can get pulled into a gas giant's orbit. Boing Boing
- The Kuiper belt is a hypothetical massive flattened disc of billions of icy planetesimals supposedly left over from the formation of the solar system.
- His greatest contribution, however, was his planetesimal hypothesis of the origin of the planets.
- After all, planetesimal sized portions of the Solar System cannot be considered to be orbiting the Earth, except in the obvious case of the Moon.