But until now, no one suspected these objects sit in a spiral pattern. Astronomers have generally ... but that's still billions of comets Why the solar system favors spirals is a mystery.

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Meteorites are rocks from space that survive their fiery descent through Earth's atmosphere and reach the ground. More than just dazzling streaks of light as meteors, these ancient fragments are among ...

and they have very long orbits which means they are found further out in our solar system.” Given this distance and their pattern of movement, it’s easy to see how the mistake was made.