@neiltyson There aren't any naturally green Irish people in the Universe either.
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@neiltyson Assuming we know every law possible in the universe.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson There's always the Northern Lights for Irish-themed space phenomena.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson with Guinness epitimosing blackness you could claim black holes :-) -
@Labourcat@neiltyson Little known fact: Guiness is red. -
@PhysWiz@neiltyson didn't know that must be so very dark a red to be black as I swear every pint I've ever drunk looked black - 1 more reply
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@neiltyson proof they are probably all Protestants.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson how about a star behind a cloud of green gas?Thanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson couldn't the Doppler effect of a star moving towards you achieve a greenish/blue color shift?Thanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson Thanks Neil, I was worried that one of them would party too hard today and black out.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson I take back all my sun kisses! Tricksters!Thanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson Ah, but there ARE green nebula - OIII has a nice bright green peak. -
@astronomydave good call -
@TheBurrMan thanks - of course, his tweet afterwards then referenced OIII. Not sure I can take any credit though. ;-)
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@neiltyson Hmm, I always thought this was more a function of the biology of vision, than anything specific to hows stars radiate light.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson But there ARE little green men, right?Thanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson But... this is not true. There are stars which peak in the green range, our visual cortices simply combine signals and see white.Thanks. Twitter will use this to make your timeline better. UndoUndo
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