Factopus

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LESSON 1 · The Life and Death of Stars

PAUSE TO THINK

What lights up those glowing jets near a newborn star?

Herbig-Haro objects

As a protostar grows, it fires twin jets of gas from its poles at hundreds of kilometers per second. Where those jets slam into the surrounding cloud, the gas heats up and glows, creating bright knots called Herbig-Haro objects.

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