Astronomers using the Hubble Space Telescope discover two new moons of Uranus that eluded detection during Voyager 2’s 1986 flyby: Cupid and Mab. Both small, dark bodies that orbit closer to Uranus than any of the planet’s large satellites, Cupid and Mab raise the number of known Uranian satellites above 20. Mab’s orbit keeps it within the planet’s outermost ring, while Cupid’s orbit is only 500 miles further out than that of Belinda, one of the small moons discovered in 1986 by Voyager 2. Cupid is the tiniest of the inner moons of Uranus, roughly 11 miles in diameter.
Uranus moons Hubble
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