Hey Patrick, I respect your opinion, but what makes you so sure? The orbit of a planet is actually much more delicate than we might think, it is like balancing on a wire, a slight touch is all it needs to push it off balance, then either the gravity of the sun, or the centrifugel force takes over, one or the other.

Did you know all sattelites need to consume fuel to maintain thier orbits around earth? We've never been able to replicate the perfect trajectory of a naturall perpetual planetary orbit in any sattelite, or even that of the moon, all of our launced devices require propulsion to keep correcting errors, the tiniest of which amplifies over time, deteriorating into either movement towards space, or twoards Earth.

Also do you know of the Orion project? It involved using nuclear explosions to propel spacecraft. The propusive force of a nuclear explosion is really something, the spacecraft of Orion were huge things, they had to be, to survive the blasts at their base, whcih propelled them. They were prototyped, so the technique was proven, but the full size versions never made or launched due to the known effect it would have on Earth's environment.

With respect, unless you have some experience of calculating orbital dynamics, and have done the sums, it seems a rash assumption to make, that Earth can't be toppled from its orbit by enough nuclear explosions in the right place, at the right time, to me, having done some orbital dynamics in my career, it absolutely could, and from a safety point of view, I would strongly advise we don't take the risk.

The question I asked is in effect, how much force is needed, to push Earth out of orbit.

The honest answer is, no-one knows.