[aft_lizard]

Well by the time he got to the middle he would of melted away, if that wouldnt have happened gravity would crush him to a pretty small size and then instead of winging it out the other side you would circle endlessly in the center.

[thackney]

if that wouldnt have happened gravity would crush him to a pretty small size

Nope, in the center gravity forces would be zero. You would have equal pull in all directions so you would be weightless.

[lepton]

if that wouldnt have happened gravity would crush him to a pretty small size

Past a fairly shallow point, the effect of gravity would sustantially lessen, as the mass above him would begin to counter the effects of the mass below. Atmospheric pressure would become extreme though, and that might crush him.