• Beardsley@lemmy.world
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      2 months ago

      Now I’m not some fancy science-man, but I do reckon that an impact of that magnitude would propel massive chunks of Earth debris in every direction at incredible speeds. Odds seem fairly well even that you’d get your own little impact death pretty well soon after.

      • 9bananas@lemmy.world
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        2 months ago

        eh…given the distance and the weird orbits it’s gonna take for the debris to actually hit…a few days probably?

        couple of days for the bombardment to hit the surface, and then it’s a game of statistics how long it takes for a direct hit or secondary ejecta to hit your landing site/base.

        probably a better idea to take all the fun pills all at once than to wait for that…

        actually, you can probably simulate this rather well in universe sandbox! ;)

  • xlash123@sh.itjust.works
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    2 months ago

    The amount of energy it would take to punch a hole through the Earth would probably be enough to kill you from the moon.

      • 9bananas@lemmy.world
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        2 months ago

        probably radiation:

        that kind of impact is gonna tear apart a lot of atoms and the energies involved would create high temperature plasma; basically a very big fusion bomb…

  • yesman@lemmy.world
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    2 months ago

    “somebody is fucking with me”

    The Earth is way too close, and I don’t think a meteor strike on the earth, no matter how energetic, would look like a bullet going through an apple.

    • Maalus@lemmy.world
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      2 months ago

      You assume this is a meteor strike and not some type of planet killing weapon

      • datelmd5sum@lemmy.world
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        2 months ago

        I think any matter going fast enough would do that. In the fast going thing’s perspective the earth would basically be just a thin membrane.

          • datelmd5sum@lemmy.world
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            2 months ago

            that’s basically chemistry. At relativistic speeds the electrons of the projectile don’t have play a significant role. It’s going to be atomic nuclei hitting atomic nuclei and the time it takes to go through the earth is like two microseconds for the projectile going at ( 1 - 10^-9 ) c. Even that, I suppose, is too long for the particle beam to scatter momentum from fusing with other particles, creating gamma rays, creating exotic particles etc. But we could just always go even closer to c? (on paper)

  • CitizenKong@lemmy.world
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    2 months ago

    That’s not how planetary collisions work.

    Earth’s core is a solid ball of iron-nickel alloy as hot as the surface of the sun. Not even a huge asteroid could just go through it and come out the other side.

    • SapphironZA@sh.itjust.works
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      2 months ago

      The ball on the bottom right, is the earth’s core leaving.

      BTW, the book Seveneves is worth a read/listen. It covers a scenario of something very very dense passing through the moon.

      • Captain Aggravated@sh.itjust.works
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        2 months ago

        I like the idea that it hit the core and knocked it out the other side while remaining in place like that one executive desk toy thing. Newton’s cradle? is that what that thing is called.

        Someone get Randall Monroe on this image, he’d do the math.

        The thing that strikes me…the object hit the earth dead on, on the sunlit side, so the object would have come right out of the Sun or slightly behind. Like it looks like it was about 2 PM where the object hit. So the object would have barely missed the Sun…yesterday or so at the speed it would have to be moving to splat the Earth like a bullet through a melon.

        I think to hit that hard it would need to be moving at a large fraction of the speed of light, in which case there would be a tremendous amount of nuclear fusion. Like, probably an exaton blast.

        • reinei@lemmy.world
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          2 months ago

          The thing is Randall already kind of did something like this in his “What-if?” which talked about a diamond meteor hitting the earth…

          And basically it boils down to: Either Galileo/Newton/whoever was the smart fuck that discovered it was right and the meteor would only create a crater roughly as deep as it was itself. (This if it could touch the core it would be at least the same size as the earth and the picture would look different)

          Or it would be going fast enough to ignore most of all that classical physics stuff, phase through most solid material and blow apart every piece of the earth because it would have enough energy to completely overcome the gravitational force holding everything to everything else here on earth.

          (Now granted, those were the two extremes and there might just be a perfect balance in between, but I’m sure as hell not going to look for it! At the very least because getting funding for the experiments is seriously difficult for some reason…)

      • BowtiesAreCool@lemmy.world
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        2 months ago

        I started that book, because I was super interested in the concept, and I couldn’t continue after a few chapters. The way he writes women seemed very poor to me.

        • SapphironZA@sh.itjust.works
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          2 months ago

          Yeah, his writing of characters is not the best. He does not come across as a people person, so I will give him some leeway.

  • trolololol@lemmy.world
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    2 months ago

    From the looks of it the astronaut was just out of the lunar grocery store starting to walk home for some dinner and down time.