NASA's Astronomy Picture of the Day featured a nearly two-hour timelapse by Brad Croslin showing ghostly spokes moving along Saturn's B ring.

Key Details

• Featured a nearly two-hour timelapse by Brad Croslin showing Saturn's rotation and B ring spokes
• Highlights observations of Saturn's spokes from Voyager 2, Cassini, and Hubble
• Explains that Saturn's spokes vary with seasons and may be caused by electromagnetic interactions between solar wind and dust/ice

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