Talk:20x Earth

"Earth has:

* Crust, 0-40 km downwards from the surface, mainly solid, temperature 180-1200 K   * Mantle, 40-7000 km downwards from the surface, molten, temperature 1200-3000 K    * Core, 7000-127456 km downwards from the surface, gas/plasma, temperature 3000-100000 K

In terms of mass, Earth is a hollow sphere. The mantle has the greatest density, ~5 kg/dm³, and the core has only ~5 kg/m³. This is possible, because the enormous temperature of the core forces everything to become plasma or gas and lose density. "

--And what about surface gravity? Is it going to be 4x Earth gravity, so that people can barely stand? (This is exactly why you can't have a 20x earth.) Tel Loiryn 11:57, 25 August 2008 (UTC)