What a Dusty Solar System We Have! Here’s What Astronomers Found Hiding in the Mess

For several years, astronomers have known that rings of dust follow the planets Earth and Venus in their journeys around the Sun. Researchers have now found a similar ring of dust also accompanies Mercury in its orbit, much to the surprise of astronomers, who believed any system like this would be driven away by the Sun. Our own ring is produced by collisions between bodies in the asteroid belt between Mars and Jupiter, but computer simulations have shown the ring bonded with Venus is likely the result of a previously-unknown asteroid belt around the orbit of that planet.

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