The exploration of Uranus is known to be a bit complicated to do because spacecraft will not be able to land. It is also very far away from Earth. It was in 1986 when Voyager 2 was able to get close to Uranus. It was able to take note of the various moons of the planet as it is noted to have 10.
There are also more details available regarding its surface. Based on this exploration, they were also able to find two new rings around Uranus. Other than this spacecraft, the other details about this planet are usually taken from various telescopes. This may be a planet that will be explored soon based on the other technologies that are being created.