planet comparisons

i thought this graphic was pretty interesting. our moon is an anomaly. we know so little about it. we have only theories as to how it was formed and how it was captured IF it was captured by our earth. it is "too big" for a moon and the earth and the moon act more like a binary system. with this new recatergorizing of planets and planetoids, we may have to record our moon as a sister planet. that, i would not object to but damn it! Pluto IS A PLANET!