There haven't been any probes sent to Eris.
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.
Nobody. The only place other than Earth where people have walked is the moon. Eris has only been observed through telescopes and has not even been visited by a space probe.
Saturn was discovered by ancient Greeks and Romans, so sorry no space crafts.
Scientists use telescopes, specifically large ground-based telescopes and space telescopes like the Hubble Space Telescope, to study Eris. These telescopes allow them to observe Eris' size, shape, surface features, and composition.
None. There are not even any plans in development to visit Eris. Humans have never gone farther than the moon. Pluto is the most distant object visited by a man-made object.
No
Voyager 2 is the only spacecraft to visited Neptune.
7
Spacecrafts have never visited Pluto, but the New Horizons mission is on its way there.
none with humans although some probes have
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.
Nobody. The only place other than Earth where people have walked is the moon. Eris has only been observed through telescopes and has not even been visited by a space probe.
Saturn was discovered by ancient Greeks and Romans, so sorry no space crafts.
No manned missions have gone farther away than the moon. If you mean space probes or satellites, I think three
Never, Eris was explored only by telescopes.
Mission to Eris
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.