For me it is the fact that our blood contains iron. I earlier used to believe the word stood for some 'organic element' since I couldn't accept we had metal flowing through our supposed carbon-based bodies, till I realized that is where the taste and smell of blood comes from.

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[–] 67 points 3 years ago (4 children)

The sun could've gone nova 8 minutes ago and we wouldn't know for another 20 seconds or so.

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  • [–] [S] 48 points 3 years ago (2 children)

    Interesting fact: the sun becomes 1 million tons lighter every second.

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  • [–] 2 points 3 years ago (3 children)
  • [–] 12 points 3 years ago (1 child)

    I might be misremembering but I believe our sun can't go nova, it's too small. It will, however, expand and swallow the Earth towards the end of its life.

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  • [–] 11 points 3 years ago (1 child)

    The Sun is not a big enough star to ever go nova. Neither are any of our close neighbors. We’re pretty safe from that kind of disaster.

    Earth is just gonna slowly cook to a cinder and probably get swallowed when the Sun starts expanding in a couple billion years.

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  • [–] 7 points 3 years ago

    Fine! Geez.

    Space aliens could teleport in next to sun, fling a bunch of Star Trek red matter at it like Spock did to the Romulan star, destabilize the star, and cause a, I think it was a black hole? where the star was. And we wouldn't know for 8-ish minutes.

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