What would happen if earth lost its gravity?

If earth's gravity disappeared, all laws of physics would have been changed and life as we know it would end. Objects would be launched from earth, and in fact the entire earth would fly apart. The atmosphere would be flung into space, and everything else would be flying out behind it. In short, a very quick death for all life forms. Fortunately, universal gravitation is not something that can be turned on and off, so the occurrence is virtually impossible.