The Earth and four other planets (Mars Jupiter, Saturn and Uranus) give evidence of having been hit by fragments of bodies and/or capturing fragments in ring systems such as the icy rings of Saturn. In the case of Mars, 91 percent of its craters, including all of the largest, are on one side of the planet. This suggests that (a) 82 percent of its craters occurred on one day, and (b) those fragments which missed Mars became the asteroids. But, paying attention to the perihelions of the 15 largest asteroids, whose average is 239,000,000 miles from the Sun, the implication is that the fragmentation occurred when Mars was in another orbit. The flybys of Mars caused mountain uplifts on the earth.