We should send space probe just like New Horizons Spacecraft to Eris. So we can launch this spacecraft in 2015 to make Jupiter, Saturn, and Neptune flybys then to Eris.
As of 2021, no space crafts have visited Eris, the dwarf planet located in the outer solar system. Most of the information we have about Eris comes from observations made from telescopes here on Earth.
No. Eris is much to far away to send astronauts there. We have not even sent any probes there. The only object astronauts have visited is the moon, which is much closer to Earth than any other object in space.
No. No spacecraft has gone past Eris, nor are there currently plans to send anything there.
yes
none
None.
No, there have not been any space missions that have visited Uranus. The Voyager 2 spacecraft is the only spacecraft to have passed by Uranus, conducting a flyby in 1986. There are currently no upcoming missions planned to visit Uranus.
No, there are no plans for more Apollo missions. The Apollo program ended in 1972 after the successful moon landings. NASA's focus has shifted to other space exploration missions, such as the Artemis program, which aims to return humans to the Moon and eventually send astronauts to Mars.
Eris doesn't have any rings.
Spirit and Opportunity are two.
Plenty - see related link for a list
Yes, Voyager II has. (Voyager II is an unmanned space probe).