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>And probably a month of airplane travel just to get there. Space travel would probably be more advanced by now.
by josu 9y ago
>And probably a month of airplane travel just to get there.
Space travel would probably be more advanced by now.
- Simon_says 9y agoIt would be drastically harder to get out of the gravity well on the planet. Even if the strength of gravity at the surface was the same as Earth’s, the field would be stronger farther out than Earth’s —- 11x as much due to the geometry. It would take 11x more energy to escape the planet, though low orbit would be practically the same difficulty.
- Armisael16 9y agoLow orbit would also be a lot more difficult; when you scale a planet's radius and mass to preserve surface gravity, all delta-v requirements scale as the square root of the of radius.
- Simon_says 9y agoOh, yea, you're right.
- sliken 9y agoEscape velocity is 6x the earths, 60km/sec or so.
- Simon_says 9y agoThat's Jupiter. We're talking about a hypothetical planet of Jupiter's size and Earth's surface gravity.