| Protostar (1999) | ||||
 | A protostar is an object that is not quite yet a star. Stars are born in clouds of gas and dust — the ashes from earlier generations of dead stars. Gradually the cloud collapses under its own gravity, and its rotation makes it flatten out like a pizza dough spun in the air. This picture shows what you might see if you could peer through the protostar's birth cloud at the newly forming sun inside. |
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