Titania is the largest moon of Uranus, the seventh planet from the Sun. It was discovered by William Herschel in 1787 and is named after the queen of the fairies in Shakespeare's play "A Midsummer Night's Dream."

Here are some key facts about Titania:

Size and Composition: Titania has a diameter of about 1,578 kilometers (981 miles), making it the eighth-largest moon in the solar system. It is composed primarily of ice and rock.

Surface Features: Titania's surface is heavily cratered, indicating a relatively old age. It also has extensive fault systems, valleys, and scarps. The largest known impact crater on Titania is called Gertrude, which is about 326 kilometers (203 miles) in diameter.

Tectonic Activity: Titania exhibits evidence of past tectonic activity, with signs of geological processes such as extensional faulting and resurfacing. These features suggest that the moon may have undergone internal activity in the past.

Orbital Characteristics: Titania orbits Uranus at an average distance of about 436,300 kilometers (271,000 miles). It takes approximately 8.7 days to complete one orbit around Uranus.

Atmosphere: Titania has an extremely tenuous and thin atmosphere composed of molecular oxygen (O2) and traces of other gases. The origin of this atmosphere is thought to be from the surface ice being bombarded by charged particles from Uranus' magnetosphere.

Exploration: Titania has been studied primarily through observations made by telescopes from Earth and the Voyager 2 spacecraft, which flew by Uranus and its moons in 1986. No dedicated missions have been sent to explore Titania specifically.