In your daily dose of science geekiness, you may appreciate another event going on in the sky this July 4th than the annual combustion of your neighbor's illegal stash of gunpowder-Mars and Saturn will align for the evening. Then on the 5th, the Moon will join those two for a little celestial ménage à trois. We know, it's usually too much work to grab your telescope for these things. But since you'll be staring at the sky already... [NASA via TFOT, Image]