it is a giant asteroid colony of the entire zeon empire. in the anime movie version, char bought this from the earth government secretly by gold bars. he then use axis by putting it on a collision course towards earth because we wants earth to be purified so that mankind will evolve into newtypes, but it didn't happened because amuro ray use his nu-gundam to push it away from earth.
That's basically the plot line of Endless waltz. Zechs wanted to destroy the earth for the colonies to live in peace. He wanted to kill everyone that wanted tp fight. And since that was everyone..well, you get the point. But in endless waltz, they used the peacemillion to push Libra away. But a small section broke off and Heero pulled off one of the greatest stunts in history.
anyway...axis is more a 100x bigger than libra. and amuro push it away alone when axis was already near the atmosphere of earth. why alone? most all the ms can't handle the pressure, heat, and gravity of earth and axis. the nu-gundam is incredible durable, it didn't have a scratch while pushing the axis. why push? not to mention axis big but it's powered by a millions tons of minovsky type reactors...shoot the axis then the explosion will wipe out even thing including earth.
Yeah, killing every living thing would not be good. And I think it looks way cooler anime. And the Nu gundam not having any scratches is pretty unrealistic. It probably would've looked better if it started to get ripped up like in Wing. I thing it added a more dramatic effect. It showed that it really was a life or death situation, not a walk in the park.
I will look it up. And even though yu say it is incredibly tough, do you know how hot it gets when something re-enters the atmosphere? It is increcidibly hot. I'm pretty sure it would have done something to it.