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36 votes
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Why don't (or can't) stars be more than 325 or so times the mass of the sun? What limits their size?

There is basically an upper limit to the mass of a star because their luminosity is so great that the radiation pressure prevents the accretion of further mass. However, the upper limit depends on the ...
ProfRob's user avatar
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2 votes
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Where is the habitable zone of a Hypergiant?

I note that in old style space opera type stories, such as Star Trek, it is common to mention and visit habitable planets orbiting around types of stars which should not have habitable planets for ...
M. A. Golding's user avatar

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