Advertisement
Advertisement
protoplanetary disk
/ prō′tə-plăn′ĭ-tĕr′ē /
- A rotating disk of dust and gas that surrounds the core of a developing solar system. It may eventually develop into orbiting celestial bodies such as planets and asteroids.
- See more at planetesimal
Discover More
Example Sentences
We see the protoplanetary disk around it at an angle, but nearly “face-on.”
From The Daily Beast
Advertisement
Advertisement
Advertisement
Advertisement
Browse