M Thomas Apple Author Page

Astronomers have found three previously unknown moons in our solar system — two additional moons circling Neptune and one around Uranus.

https://www.nbcnews.com/science/space/astronomers-spot-new-tiny-moons-neptune-uranus-rcna140285

One takes nearly 27 years to circle Neptune.

The “new” moon of Uranus is only 8 kilometers (5 miles) in diameter.

And there are likely many more yet to be discovered.