I'm not native english speaker,so don't judge my unorganised sentence :) Imagine something happened in space,some reaction,that change the way we know Earth,So everything starts to go opossite,Earth spinning,moon activities,sun,bunch of climate changes,etc...then would Gravity and human race(regarding human body/form) exist in the way we know it?And hoping it could be preserved,what do you think new life will look? May the Force be with you all :)