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Keeping Planetary Rings Going for Eons

It’s common knowledge that planetary rings, like those at Saturn, don’t last forever (see 02/12/2002 headline), so scientists either have to find a way to keep them going, or admit that we live in a special period in the lifetime of the solar system to see them now.  That latter option is “philosophically unappealing” to […]

Vega Has a Neptune?

The BBC News and EurekAlert are pretty excited about a discovery at Vega, the sapphire-blue star that hangs overhead in summertime (from the Northern Hemisphere; Aussies see it at the horizon).  Astronomers think they see a clump of material that might be at the distance from the star similar to Neptune’s distance from the sun.  […]
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