Curiouser and curiouser.
In this week's headlines: Saturn's moon Prometheus is creating giant snowballs in the wake of it's gravitational field. It pulls the material off the F ring, and the gathered material creates enough gravity on its own to clump together into snowballs, following Prometheus around like ducklings. Prometheus also creates these weird "fans" in the F ring:
More curious still are "mysterious tumbling objects" that go ricocheting back-and-forth across the F ring before vanishing from sight. Sometimes they have comet-like tails, and their orbits can't be tracked. Note that UFO abductees are not reporting this, NASA's Cassini probe is. These things are real. There is such tumbling chaos in Saturn's rings, billions of tiny particles in orbit, pulling and colliding, but from out of this chaos spins rings and moons and ripples and spokes and fans and propellers. So much stunning complexity, born from Kepler's three simple, elegant laws of planetary motion. The idea that these structures form out of the infinite permutations of a few simple laws of physics fills me with more awe, more childlike wonder, than the notion they were created by a God.
Going to Rockygrass this weekend. Three days of bluegrass and hula hoops and friends and beer and camping and dozing in the hammock and playing in the water. Big Fun. Summer revolves around Rockygrass in the same way winter revolves around Christmas. It lies in the sweet spot, at the center of the season.