• Magister@lemmy.world
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    11 months ago

    We will have the collision with Andromeda Galaxy a few billion years before, so don’t worry :)

  • fastandcurious@lemmy.world
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    11 months ago

    Tbh I think this shared experience kinda shows to me how we grow selfish as we grow up, we were quite aware that it will not affect us, but the thought of the world where we see so many people living ending one day like this haunted us, now we don’t care, we don’t care about anything that doesn’t affect us or people we know…

    • criitz@reddthat.com
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      11 months ago

      Maybe, when we are young, the world (and the universe at large) are part of our identity of self, but as we grow older we reduce our sense of “self” to just our own physical body and mind.

      • fastandcurious@lemmy.world
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        11 months ago

        Tbh climate change has started to affect all of us who don’t have the luxury to always remain in a climate controlled environment, i am not looking forward to coming home at 2pm when the (feels like) temperature is 50C, and god knows what we will hit this year

        • rimjob_rainer@discuss.tchncs.de
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          11 months ago

          Yes, me too. But sadly most people love it. “Oh it’s so warm, spring is finally coming”, there wasn’t even winter yet, bitch. “Aw it’s really bad weather outside”, it’s the first rain in 4 months, you should be happy you dense fuckwit.

    • chatokun@lemmy.dbzer0.com
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      11 months ago

      Personally I’ve always been into space exploration stories (I mean, Star Wars isn’t always exploration (I read the books, and some are about uncharted stuff a bit, like Outbound flight, and I do like Star Trek too) and kinda hope we’re at that tech by then. I also really enjoy stuff like Schlock Mercenary and videos like https://youtu.be/ulCdoCfw-bY which while showing a bomb, also talks about a way to use black holes to outlive Red and White Dwarves, which normally should be the last source of light and heat in the universe. A colony properly using the energy black holes would still contain could potentially last trillion of years longer than all stars.

  • teft@lemmy.world
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    11 months ago

    Have no fear, the sun will not explode. You need about 8 times the mass of the sun in order for a star to explode in a supernova. The sun will expand into a red giant when it finishes fusing hydrogen into helium. When this happens the earth might be swallowed up in the expansion. After the sun finishes burning helium and continues up the fusion chain to iron the fusion in the core will fail and the outer layers of the sun will puff off into a planetary nebula. This won’t be a particularly violent event. The naked core leftover will be a white dwarf which is effectively just a molten ball of mostly carbon and oxygen gradually cooling off. It will take trillions of years to cool off.

  • Thrashy@lemmy.world
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    11 months ago

    There is a certain sort of ennui that comes with the realization that the heat death of the universe is inevitable, and no matter what you do, no matter how much you manage to make your mark on the world/solar system/galaxy/universe or how successful and prosperous your descendants may be, it will all eventually be lost to eternal entropic stasis.

  • CaptnKarisma@lemmy.ml
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    11 months ago

    I read somewhere that the sun might expand a bit and become too hot for Earth in just 500 million years time, so it might be a shorter window than you’d think

    • teft@lemmy.world
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      11 months ago

      You’re missing a zero. The sun will expand into the red giant phase in about 5 billion years.

    • BreadstickNinja@lemmy.world
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      11 months ago

      The sun will get brighter in 500 to 600 million years to the extent that many plants won’t be able to survive due to disruption to the carbon cycle. Expansion comes later.

    • paysrenttobirds@sh.itjust.works
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      11 months ago

      This is what I’ve heard, that basically if we were stomped back to single celled life today, evolution would not have time to bring back visible plants and animals before the earth became uninhabitable. So there’s no starting over. I admit it kind of depresses me.

    • livus@kbin.social
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      11 months ago

      I think it might be. I still remember it happening to me and that was decades ago.

  • holycrap@lemm.ee
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    11 months ago

    Star lifting. Mine the metals and shit out of that star and it’ll potentially live trillions of years.

    And no need to worry about political will. Thar’s gold in that thar sun!

      • holycrap@lemm.ee
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        11 months ago

        Gold isn’t formed in the sun but plenty exists there for the same reason it exists on earth. Ancient supernova that provided the material for our star system.

        But gold is just one thing they would mine there of course. My comment was referring to the value of the materials mined, not just the literal gold.