• 0x0@lemmy.zip
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      15 days ago

      or a black hole.

      Not a physicist but i don’t think a black hole would work…

      • Wolf@lemmy.today
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        15 days ago

        Why wouldn’t it? A gravity well is a gravity well. As long as you remain outside the event horizon it should work in the same way.

        • sleen@lemmy.zip
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          15 days ago

          As the other commenter has stated, it’s not about the gravity - because you have to ultimately counter that gravity to escape. But it is about the kinetic energy of the planet as it orbits.