View Full Version : Moonshadows on Saturn's Rings Are Harbingers of Spring

2009-Mar-23, 06:00 PM
Moonshadows on Saturn's rings are foretelling the planet's*equinox, when the sun will be exactly aligned with the planet's equator and rings — and then will shift north from the southern hemisphere, kickstarting northern spring.*NASA's Cassini spacecraft has captured, for the first time, the tell-tale moonshadows *- sort of like groundhogs on Earth.(...)Read the rest of [...]

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