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Comet impacts scar the rings of Saturn, Jupiter

Strange formations in the rings around Saturn and Jupiter are the telltale marks of dramatic comet impacts that occurred in the last few decades, two new studies suggest.Full story

Asteroid the Size of the Titanic Rocked Jupiter

The object that plowed into Jupiter in 2009, creating a giant scar, was most likely an asteroid the size of the Titanic, rather than a comet, the latest evidence suggests. Full story

The astroid did it — hit Jupiter, that is

On July 19, 2009, 15 years to the day after the famous comet Shoemaker-Levy 9 peppered Jupiter with huge chunks of ice, the gas giant was hit once again by a cosmic bullet. Full story

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Related Photos

Star cluster
Star cluster

This photograph from NASA's Spitzer Space Telescope shows the young star cluster NGC 2362. Based on their study of the cluster, astronomers found that gas giant planet formation happens very rapidly and efficiently, within less than 5 million years, meaning that Jupiterlike worlds experience a growt