Recent Examples of protostar from the Web
In the center, the material clumped together to form a protostar that would eventually become the sun.
This contact triggered a forceful explosion that hurled streams of dust, gas, and other protostars into interstellar space at speeds over 90 miles per second, according to a statement from the National Radio Astronomy Observatory (NRAO).
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Britannica.com: Encyclopedia article about protostar
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