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Saturn, the Bringer of Youth

More discoveries of youthful phenomena contradict Gustav Holst's musical tribute to "Saturn, the Bringer of Old Age."

Pluto Rivals Earth in Geological Complexity

Call it what you will, Pluto is a planet of surprises. Its active geology is second only to Earth's, say two planetary scientists.

Pluto Shock Rebounds

The first research paper from the New Horizons team focuses and amplifies the shock waves coming from the first images in July.

Pluto Is Young

The New Horizons science team is stunned by surface features on Pluto and its large moon Charon that cannot be billions of years old.

Enceladus Geysers Still Unexplained

The number of geysers has topped a hundred on Saturn's overactive moon. How could they be sustained for billions of years?

Europa Joins the Geyser Club

Hints of watery plumes have been detected on Europa – like Enceladus, at its south pole, too.
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