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sometimes even as scientist we fall into

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old habits one such old habit is to

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assume that all stars have the same

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composition we would never assume that

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all humans are the same none of us are

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exactly alike we each have our own

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unique DNA this is true with stars as

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well where we used to just categorize

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stars by their mass age or metallicity

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we now know that they can vary in every

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single element here is a graphical

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representation of just one element

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silicon for a handful of stars in our

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solar neighborhood with our son being in

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the center of the image you can see the

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variation that exists all around us

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every star is different and each star

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has its own unique fingerprint as

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exciting as it is to explore the

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differences in each individual star it

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leads us to more important questions