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William Herschel was the first person ever to discover a planet. In 1781 he discovered the planet which was named Uranus for the ancient Greek sky god. Although Uranus has at least 27 moons, most of them weren't discovered until the Space Age.

Moons of Uranus - Facts for Kids

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A high-resolution color composite of Titania made from Voyager 2 images taken Jan. 24, 1986. Titania is the largest of the Uranian moons, some 1600 km across. In addition to many scars due to impacts, Titania displays evidence of other geologic activity at some point in its history. The large, trenchlike feature near the terminator (day-night boundary) at middle right suggests at least one episode of tectonic activity. Another, basinlike structure near the upper right is evidence of an ancient period of heavy impact activity. The neutral gray color of Titania is characteristic of the Uranian satellites as a whole.

As you can see, named features have been labelled on the image. Titania was the queen of the fairies in Shakespeare's A Midsummer Night's Dream. The craters have the names of other female characters from Shakespearian plays, and other types of feature are named for places in the plays.

Voyager 2's highest-resolution image of Titania shows moderately cratered plains, enormous rifts and long scarps. Near the bottom, a region of smoother plains including the crater Ursula is split by the graben Belmont Chasma.

Photo Credit: NASA

Here is the best Voyager image of Oberon. The color was reconstructed from images taken through the narrow-angle camera's violet, clear and green filters. The picture shows features as small as 12 km (7 mi) on the moon's surface. Clearly visible are several large impact craters in Oberon's icy surface surrounded by bright rays similar to those seen on Jupiter's moon Callisto. Quite prominent near the center of Oberon's disk is a large crater with a bright central peak and a floor partially covered with very dark material. This may be icy, carbon-rich material erupted onto the crater floor sometime after the crater formed. Another striking topographic feature is a large mountain, about 6 km (4 mi) high, peeking out on the lower left limb.

Voyager's image of Umbriel shows the moon's heavy cratering.

Umbriel is the darkest of Uranus' larger moons and the one that appears to have experienced the lowest level of geological activity. It has a diameter of about 1,200 km (750 mi) and reflects only 16 percent of the light striking its surface. Although Umbriel is heavily cratered it lacks the many bright ray craters seen on the other large Uranian satellites. This leaves the surface fairly uniformly dark.

But not completely dark. At the top of the image is a bright ring about 140 km (90 miles) in diameter, lying near the equator. No way of knowing what it is.

This mosaic of the four highest-resolution images of Ariel represents the most detailed Voyager 2 picture of this satellite of Uranus. Much of Ariel's surface is densely pitted with craters 5 to 10 km (3 to 6 mi) across. Numerous valleys and fault scarps crisscross the highly pitted terrain. Voyager scientists believe the valleys have formed over down-dropped fault blocks (graben); apparently, extensive faulting has occurred as a result of expansion and stretching of Ariel's crust. The largest fault valleys, near the terminator at right, as well as a smooth region near the center of this image, have been partly filled with deposits that are younger and less heavily cratered than the pitted terrain. Narrow, somewhat sinuous scarps and valleys have been formed, in turn, in these young deposits. It is not yet clear whether these sinuous features have been formed by faulting or by the flow of fluids.

Miranda, also designated Uranus V, is the smallest and innermost of Uranus's five round satellites. It was discovered by Gerard Kuiper on 16 February 1948 at McDonald Observatory, and named after Miranda from William Shakespeare's play The Tempest.

The image is from the Voyager 2 mission. The jumbled mess of the surface has been described as looking like the moon was smashed apart and then just fell back together.