
Credit: NASA’s Goddard Space Flight Center/Mary Pat Hrybyk-Keith
Two recent studies report discoveries of dust rings in the inner solar system: a dust ring at Mercury’s orbit, and a group of never-before-detected asteroids co-orbiting with Venus, supplying the dust in Venus’ orbit. Just as dust gathers in corners and along bookshelves in our homes, dust piles up in space too. But when the dust settles in the solar system, it’s often in rings...
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