Quote:
Originally Posted by GT182
Oberon, what if by chance it knocks Mars out of it's orbit? 310 mlles across is one hell of a big piece of rock. And Mars isn't as large as Earth.  |
I don't know if the mass of that comet is known, but if I'm not mistaken accelerating Mars enough to achieve Solar escape velocity or decelerating it to the point it will de-orbit into the sun will require orders of magnitude more kinetic energy than 20 petatons.