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This is a cliff on comet 67P/Churyumov–Gerasimenko. It's about 1 km tall. If you jumped from the top, it would take you 47 minutes to reach the bottom, and you'd probably be OK.

"On a neutron star, the gravity is so intense that an object dropped from a meter off the surface would accelerate to about a million km/h by the time it hit the surface. The gravity would be strong enough to pull your electrons into the nuclei of your atoms and convert your protons into neutrons."