pre-main-sequence star

  • Stellar Evolution Demystified

    Stellar Evolution Demystified

    Whaddya know…after what seems like a geological age, we’re finally done with stellar evolution! And we’ve covered a truly ridiculous amount of information. We’ve covered a star’s relatively gentle, humble beginnings within the collapsing cores of giant molecular clouds (or…

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  • Observations of Star Birth

    Observations of Star Birth

    Astronomers have a pretty solid idea of how stars are born. They begin within the dense, cold dust of an interstellar cloud such as this one. They heat up and get more luminous as they contract, and then drop in…

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