the voyager has traveled by iy
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.
yes
Yes, human-made objects have traveled to Mars. NASA has successfully deployed several robotic missions on Mars, including the Mars rovers like Sojourner, Spirit, Opportunity, Curiosity, and the lander InSight. However, humans have not physically traveled to Mars yet.
Not yet. The New Horizons space probe, launched in 2006, will fly by Pluto in June 2015. Humans themselves have only been as far as the moon.
Humans have never gone farther than the moon. In 2015 the New Horizons space probe made a flyby of Pluto. It was the first time any man-made object has come close to Pluto.
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.
yes
Yes, human-made objects have traveled to Mars. NASA has successfully deployed several robotic missions on Mars, including the Mars rovers like Sojourner, Spirit, Opportunity, Curiosity, and the lander InSight. However, humans have not physically traveled to Mars yet.
Not yet. The New Horizons space probe, launched in 2006, will fly by Pluto in June 2015. Humans themselves have only been as far as the moon.
Humans have never gone farther than the moon. In 2015 the New Horizons space probe made a flyby of Pluto. It was the first time any man-made object has come close to Pluto.
artifacts
Eris is made of rock and ice.
Voyager II came within 81,500 km of Uranus in January of 1986, on its way to Neptune. No human has ever gone farther than Earth's moon.
Eris is made mostly of ice.
Eris's moon Dysnomia, appears to be made of material similar to Eris and Eris appears almost grey.
objects made and used by early humans
Man-made objects have traveled to Mars, zoomed by Mars and kept going, crashed on Mars, entered orbit around Mars, and landed on Mars. At least three of them are presently creeping around on the surface of Mars under the command and control of their own on-board software and controllers on Earth, performing scientific experiments and observations, and communicating their findings back to Earth. The only astronomical body other than Earth around which humans have entered orbit or upon which humans have walked is the moon ... roughly 1/2 of 1 percent of the distance from here to Mars.