In Wildly Different Environments, Stars End Up Roughly the Same

stars
Mock narrowband observation of a simulated star-forming region where massive stars destroy their parent cloud. Credit: STARFORGE

When you look at a region of the sky where stars are born, you see a cloud of gas and dust and a bunch of stars. It’s really a beautiful sight. In most places, the stars all end up being about the same mass. That mass is probably the most important factor you want to know about it. It directs how long the star will live and what its future will be like. But, what determines its mass and the mass of its siblings in a stellar nursery? Is there some governing force that tells them how massive they’ll be? It turns out that the stars do it for themselves.

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