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How a monstrous asteroid forever changed the trajectory of Jupiter's biggest moon Ganymede
The impact on Ganymede not only reshaped its physical landscape but also had profound effects on its rotation. The force of the collision was so immense that it caused the moon to undergo a ...
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A Series of Cosmic Collisions Gave Saturn 128 'New' Moons
The smashups are thought to have occurred at least 100 million years ago, but the moons they created are new to astronomers.