Well if he is unstoppable could he barge into the center of the Earth and make the planet split apart? Sure its a little far-fetched but he probably could.

Dangit! two copies? How does this keep happening?

The Juggernaut has been shown to be on par or above those that have claimed to be or have shown planet busting abilities in the past. So yes.

The Juggernaut has been shown to be really been far even as decided to use even go want to do look more like in the past, so no.

If a projectile the size of a man - even a crazily large man like Juggy - penetrated to the center of the Earth it would have no effect. 
 
Something the size of a man can't do anything to the planet except sink his hands into it. If he punches the ground, no matter how strong he is, his fist goes through. If he could somehow push on enough surface area to move it, he would have to be HEAVIER than the Earth or he would push himself away from the Earth rather than vice versa.
 
All this planet busting BS is just whimsical nonsense. It's very poor science.

If a projectile the size of a man - even a crazily large man like Juggy - penetrated to the center of the Earth it would have no effect.   Something the size of a man can't do anything to the planet except sink his hands into it. If he punches the ground, no matter how strong he is, his fist goes through. If he could somehow push on enough surface area to move it, he would have to be HEAVIER than the Earth or he would push himself away from the Earth rather than vice versa.  All this planet busting BS is just whimsical nonsense. It's very poor science.

The Juggernaut has been shown to be really been far even as decided to use even go want to do look more like in the past, so no.

Theres a What If Comic whre Juggernaurt kills everyone on earth by killing the X Men an unleshing Centenials who unleash a Radiation that kills everyone but Juggetnaut

@SpidermanWins: Um this one was http://en.wikipedia.org/wiki/Primortals

You can't 'planet bust' without an anti-matter bomb or a small star, because if you shoot a lazer beam that vaporises the whole planet it will just collapse from its own mass again. You need a weapon that would accelerate the majority of the planet's mass to escape velocity, which is absolutely ridiculous and Juggernaut could not do it.

He could potentially break any given part of the planet, but it just makes no sense that he could 'crack the planet'; the planet doesn't even have enough structural integrity to BE split in half.

@batkevin74 said:

@SpidermanWins: Um this one was http://en.wikipedia.org/wiki/Primortals

hmm... maybe, I'd have to see it for myself

@TheCheeseStabber said:

Theres a What If Comic whre Juggernaurt kills everyone on earth by killing the X Men an unleshing Centenials who unleash a Radiation that kills everyone but Juggetnaut

I'm talking about getting him to somehow get the momentum to plow through the center of the earth to the other side and splitting it in half.

@SpidermanWins: Maybe if he was shot staight up out of a cannon then came straight down in terminal velocity

@TheCheeseStabber said:

@SpidermanWins: Maybe if he was shot staight up out of a cannon then came straight down in terminal velocity

Lol I'm picturing that one...

Yes. If he's regular power, he can just punch chunks of the crust and throw it up in space one piece at a time. It would take him some time, but he can do it.  After all the crust is off of Earth he can scoop up all of the liquid rock left in the mantle and throw it in space. This would take him hundreds or up to a thousand years to complete this. After all the Mantel is gone, he can start with the molten metals of the Outter Core. Once he gets to the Inner Core which is solid metal, he would have to dig his way to the center and demolish it from the inside out. All the mass separated, no more gravity. No more Earth. 
 
Or he can just simply dig his way to the core and destroy it. This would be more simple if he were 8th Day. If this were the Juggernaut that still practiced spells of the mystic arts, all he would have to do is shrink the Earth into the size of a tennis ball and crush it with his own hands.
 
If this were Trion Juggernaut, all he would have to do is wave his fist towards the Earth and the whole Earth and it's entire space-time continuum disappears.