Exoplanet With Super-Saturn Ring System


#1

They found a star, 420 light years away, with a “young Saturn” in orbit; it has a ring system that is 120 million km across, or over 200 times wider than Saturn’s present ring system. It likely has an entire Earth’s worth of material within its structure at present (if we replaced Saturn’s rings with this ring system, it would be larger across than the full Moon and easily visible with the naked eye), which will probably coalesce over the next few million years into moons of the young planet.

(Also, one of the astronomers is an old professor of mine!)


#2

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