Newslink: Surprise! Dust Ring Discovered in Mercury's Orbit

Two dusty discoveries may shake up our understanding of the inner solar system.

Mercury shares its supertight orbit with a big ring of wandering dust, a recent study suggests. And a cloud of as-yet-undiscovered asteroids likely gave rise to a similar halo in Venus' neighborhood, another new paper concludes.

https://www.space.com/dust-ring-discovered-mercury-orbit.html