Callisto:The Oldest Surface in the Solar System



Discover Callisto, the last of Jupiter’s moons, and what we might yet learn about it.

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44 thoughts on “Callisto:The Oldest Surface in the Solar System”

  1. We wont Visit Callisto before 2100. I just dont see us being able to get a reasonable use of it for now. Should honestly focus on making a moon base to its fullest potential before trying to half ass another one

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  2. If we do find water on the 3 moon would you think we just harvest it purify it and put in storage on earth. I could see space colony growing around the moon also could spreading cause a rubber band affect just thinking of earth as Eden of last hope and new Beginning.

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  3. Hey, Simon! When are you dropping your own brand of ethically sourced, organic, cruelty free, high purity, sustainably made nose candy? Special White, SW by Simon Whistler 👀❄️ I need your productivity 🥴

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  4. I know this has been asked before, but how the hell does Simon have time to post on ALL of his channels regularly??? It's takes so much time just to make one, not to mention almost 3 a day on average.

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  5. I had always thought of Io as the oddball Galilean moon, because of its volcanic activity… but Callisto's orbital separation and low radiation dose make it interestingly unique… or uniquely interesting? It seems that we'll have a very interesting couple of decades before the predicted economic collapse of modern civilisation around 2040-2050.

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  6. No. If we found a single cell whatever, no one would care long term. The news and space people would go nutz for a little while but later everyone else would say, "So what?" .

    No one cares about single cell life or multiple cell low end life.

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  7. Callisto's atmosphere is mostly CO2, eh?
    Wow. That little rock must have runaway greenhouse phenomena like a BITCH, right? How hot is it?
    Thirty seven Kelvin?
    Huh. I guess CO2 is different out there, right? Not powered by paranoia or something. Maybe it's CO2 Lite.

    Or maybe CO2 is not a greenhouse gas because greenhouse gases are pseudoscience.

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  8. Mercury's density is about 98% that of Earths. Both are around 5.5g/cm^3 with Earth being the densest. Please correct me if I'm wrong. Wonderful video as always though, hosted by one of Youtube's best!

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  9. I cannot imagine how pants shitting it would be to discover some marine megafauna on some distant moon.

    Drone cracks through the outter shell and the planet is just filled with mountain sized squid. Shudders

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