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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."

Mars Is Losing Its Atmosphere Fast

Measurements of Martian atmospheric loss rates imply incredible changes over the assumed billions of years of Mars' history.

Surprising Youth in the Solar System

Four solar system objects in the news look young, not billions of years old.
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