For example if the Betelgeuze system had a planet, with a theoretical large telescope on that planet and looked back at earth. It would see life and civilizations from the 15th century a.d. (~500 light years distance)

  • tetris11@lemmy.ml
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    10 days ago

    *Watching 17th century* “oh man, this July season of France is going to be epic!”

  • madame_gaymes@programming.dev
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    10 days ago

    A while ago a coworker and I had an idea for a sci-fi novel that was similar in idea to this.

    Essentially humanity sent out these probes that were in effect giant mirrors (pointed at Earth) that reflected light information back to us. The further out they go, the further back in time we get images/video of. We never went anywhere with it, but I thought it would have been neat to explore what happens to immediate political tensions since hard evidence of more recent events, never seen before, would return to Earth first before we even found out the origin of our species.

  • Komodo Rodeo@lemmy.world
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    10 days ago

    What do you mean if? We’ve been doing that for years, and so far as I understand it, the only reason that we haven’t found any is that there are millions of solar systems to check.

  • snooggums@lemmy.world
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    10 days ago

    Then they would see the Earth at whatever detail was possible for them and nothing would be any different. Looking at another planet is like taking pictures of remote areas of our planet with satellites orbiting Earth, the animals and planets being phographed are inlmpacted in no way.

    If you are asking about how it would affect the alien species to know people exist it would be necessary to understand their culture and biology first.

  • Lost_My_Mind@lemmy.world
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    10 days ago

    Well…we know for fact that other planets exist with life. We don’t know WHAT life. It might be a bunch of animals that are similiar to cows or birds. But we know the planets exist, and they have living vegitation on the planet, which would indicate other life.

    We just don’t know what.

    • slingstone@lemmy.world
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      10 days ago

      Sorry to be the “um, actually” guy, but life on any planet other than Earth has not been confirmed. There have been some signs that there MAY be life elsewhere, but nothing conclusive.

      As a layperson, there seems to be a general consensus that, given the vast nature of the universe, life on other planets may be likely. We just can’t say “for a fact that other planets exist with life”.

      I’ll be happy to be proven wrong if you’ve got a source.

      • Lost_My_Mind@lemmy.world
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        10 days ago

        I just remember reading about it every few years. They’ve found several earth like planets. One I read about in 2014 said it was so similiar to earth that they unofficially nicknamed it “Earth 2”. They found another earth like planet that same month, but it’s size was so different that they made the joke it couldn’t be Earth 3, but based on size it might be Earth 5 (with the joke being the planet was like 2 earths combined).

        But our technology was good enough to see the planet is green and blue, indicating life. But our technology wasn’t good enough to zoom in to see what that life looks like. But we know it’s out there.