All eyes on Saturn
Amateur astronomers aren't the only ones excited about Saturn's opposition. The alignment between Earth, Sun, and Saturn is so good that, seen from Saturn, Earth would appear in silhouette crossing the Sun's disk.
Astronomers plan to monitor
the ringed planet from 10 observatories around the world — and with the Hubble Space Telescope — to record how the ringed planet's icy moons brighten as sunlight strikes them face-on. Called the "opposition effect," the moons can shine up to 20 percent brighter when Saturn, Earth, and the Sun align. Such an alignment won't occur again until 2020.