There have been no dedicated missions to explore Uranus with satellites or robots. The only spacecraft to have conducted a close flyby of Uranus was Voyager 2 in 1986.
To the best of our knowledge, no satellites or robots have directly explored the planet Haumea. Haumea is a dwarf planet located in the Kuiper Belt beyond Neptune, and its distance from Earth makes it challenging to send a mission there. Most of our knowledge about Haumea comes from observations made by telescopes on Earth.
Venus has no natural satellites but probes have been sent their for many years now.
No satellites or robots have ever shown up on Jupiter as far as we know. We have sent our own exploration probes that have passed Jupiter.
Satellites have been exploring Venus since the early 1960s, with missions such as NASA's Mariner and Venera from the Soviet Union. Robotic exploration of Venus has also occurred primarily through landers and probes sent by various space agencies. The most recent missions to Venus include NASA's Magellan spacecraft and the European Space Agency's Venus Express mission.
There have been no dedicated missions to explore Uranus with satellites or robots. The only spacecraft to have conducted a close flyby of Uranus was Voyager 2 in 1986.
To the best of our knowledge, no satellites or robots have directly explored the planet Haumea. Haumea is a dwarf planet located in the Kuiper Belt beyond Neptune, and its distance from Earth makes it challenging to send a mission there. Most of our knowledge about Haumea comes from observations made by telescopes on Earth.
Venus has no natural satellites but probes have been sent their for many years now.
Only Voyager 2.
No satellites or robots have ever shown up on Jupiter as far as we know. We have sent our own exploration probes that have passed Jupiter.
Yes, robots have not landed on Saturn itself, but the Cassini spacecraft spent over 13 years studying the planet and its moons before intentionally plunging into Saturn's atmosphere in 2017. No satellites have landed on Saturn.
Satellites have been exploring Venus since the early 1960s, with missions such as NASA's Mariner and Venera from the Soviet Union. Robotic exploration of Venus has also occurred primarily through landers and probes sent by various space agencies. The most recent missions to Venus include NASA's Magellan spacecraft and the European Space Agency's Venus Express mission.
The only spacecraft to have visited Neptune is the space probe Voyager 2, which flew by Neptune in August 1989.
Neptune's largest moon, Triton, was visited by the Voyager 2 spacecraft in 1989. There are no other dedicated "satellite robots" sent to Neptune's other moons as of current knowledge.
The only spacecraft to visit Uranus is NASA's Voyager 2 probe. It conducted a flyby of the planet in 1986, providing valuable data and images of Uranus and its moons. There are no known robots or satellites currently on or orbiting Uranus.
Venus has no natural satellites. The Soviet Union launched four Venera orbiting probes in the mid-1980s which may still be in orbit, although they stopped transmitting years ago. I believe that the US also has a probe remaining in Venus orbit.
The Cassini spacecraft, a joint mission by NASA, ESA, and the Italian Space Agency, explored Saturn from 2004 to 2017. It provided detailed information about Saturn's rings, moons, and atmosphere before intentionally plunging into the planet to end its mission.