None.
One space probe has been sent to Pluto: NASA's New Horizons spacecraft. It performed a flyby of Pluto in July 2015, providing the first close-up images and scientific data of the dwarf planet and its moons.
It means a trip by sea.(it has been extended to space voyages, although manned ones have been limited to Earth orbit for many years)
It means a trip by sea.(it has been extended to space voyages, although manned ones have been limited to Earth orbit for many years)
There are many planets in our solar system that have not been visited by a spacecraft. As of now, the planet Uranus has not been visited by any spacecraft.
Pluto has not been able to pull any neighboring planets or space objects into rotation around it or, it has not "cleared" it's rotational path as Saturn crosses over Pluto's path every so many years.
The region outside of Pluto is known as "The Kuiper Belt
As of 2013, Pluto has been classed as a dwarf planet for 7 years.
Pluto is certainly large enough to put many space ships on it. Were we able to get there.
No robots have been to Pluto just yet. However, come July 2015, the spacecraft New Horizons will arrive to study Pluto and it's moons.
If you are talking about how many planets are in our solar system, the official count of them are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Pluto has been offcially named as a dwarf planet. If you are talking about how many planets are in ALL of space, there are trilllions, more than you can imagine.
The answer for that is no. Pluto is now comsidered a dwarf planet. However, Pluto have many sisters and brothers. There are many dwarf planets that has been discovered. There maybe, some dwarf planets are still unknown because of the distance.
He had 3 voyages!