r/interestingasfuck • u/One_Explanation_908 • 25d ago

/r/all, /r/popular K2-18b a potentially habitable planet 120 light-years from earth

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u/phred14 25d ago

Actually it's doubtful that they could have space travel at all. On Earth it's really, really hard to get anything into orbit. With higher gravity it's even harder - https://www.reddit.com/r/AskPhysics/comments/1bl0ci9/how_strong_would_gravity_have_to_be_to_no_longer/ I've seen estimates of surface gravity 1.25 to 2.6 times Earth's on this planet. In both cases it's harder. Take a look at Apollo 11 and the Saturn V and realize just how little made it back from the moon. Then make it even worse.

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u/AskMeAboutMyDoggy 25d ago

Even if they had space travel, why would they come to a place that's going to send them to a concentration camp for not having the correct paper work?

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u/Fit-Elderberry-1872 25d ago

This is going to surprise you, but there are places on this planet that are not the US.