A cosmic collision involving two objects was discovered using the Spitzer Space Telescope in the planetary system of a star 100 light-years away.
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A Cosmic Crash
It's believed that Earth's Moon was formed when a large body collided with Earth early in its history. This event would prove to be pretty significant for what would become Earth's living inhabitants. Well, it turns out such cosmic collisions are more common than once thought. Read about how the Spitzer telescope caught one in the act.
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