What Are Protostars?

Long before stars begin fusing hydrogen at their centers — when they are still just hot overdensities in the process of contracting — we call them protostars.

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Narrator:
Russell Archey
https://www.ravonmedia.com/

Graphics & Credits:
NASA, ESA, STScI/J. Muzerolle, NOAO/Caltech/E. Furlan, University of Arizona/Steward Observatory/
K. Flaherty, Max Planck Institute for Astronomy/Z. Balog, University of Massachusetts, Amherst/R. Gutermuth
NASA/Goddard Space Flight Center
John ZuHone/Harvard-Smithsonian Center for Astrophysics

Music:
The Bright Spot - Bill Ferngren
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