The Voyager 2 space probe flew by Neptune in August 1989 and scanned the planet, sending photographs and scientific data back to Earth.
However, no, there has not been an astronaut landing on Neptune. And there wont ever be one for the following reasons:
- Neptune is freezing cold. A human would freeze to death in seconds
- Electronic equipment would also freeze and malfunction in the cold
- Neptune is a stormy planet. Humans would be blown off into space by the storm
- Neptune is a gas giant. Theoretically there is no solid surface for astronauts to walk on. They would sink through the planet and be consumed by the molten ammonia core.
- Modern space shuttles are only currently designed to orbit our own planet and the moon. We do not have the technology to keep a shuttle in space safely long enough with humans on board to reach Neptune.
Voyager 2 was on a mission to fly past all the giant planets and it discovered the rings of Uranus and a whole lot of undiscovered moons. It used the gravity of Uranus to swing it further on towards Neptune.
Neptune is a gas giant, meaning absolutely no land, so in order to "visit" it would need to have a couple of things:
1. A big tolerance for pressure.
2. Need to be liquid proof
3. a single spark could light that planet ablaze, so it wouldn't get back to earth, with rockets, so they would also need to find a solution.
4. A very good reason to visit neptune, it cost 24,000 a pound to send something into space after all (Not to mention all the fuel, metals used in the rocket, and man power)
5. and until aliens from neptune invade, it probably ins't going to happen for a long time, sorry charlie
The American Probe Voyager 2 reached Neptune in 1989 and investigated its largest moon: Triton. No human has ever visited Neptune nor has any probe before or since Voyager 2.
Yes, the voyager spacecraft. And a different one from captain janeway's voyager
Voyager 1 is the only space probe to visit Neptune
In 2006, NASA launched a space probe towards mars, that is due to arrive in 2015. This is the first time we will have seen pluto.
Yes. Neptune has been visited by only one spacecraft, Voyager 2, which flew by the blue planet on August 25, 1989
Yes
In fact it went to Pluto.
to small satelites called pioneer 10 and 11 has explored Pluto
No hardware sent to Mars has ever been returned to Earth, and nothing that's landed on the Martian surface has ever been launched from it.
No, no robot has gone to Pluto, other than the onboard computers of the New Horizons spacecraft, which observed Pluto from orbit.
Yes. Sometimes Neptune is father away from the sun than Pluto. Pluto's orbit crosses Neptune's. None of the other seven planets ever get farther away from the sun that Pluto.
pluto is way to distant and it also has no atmosphere, so no life could be sustained on the surface. there may be small bacteria on the inside of pluto because frozen water is contained on the inside of pluto.
yes
none
No, we are working on getting to Mars. Pluto is several trillions of miles away
have any robots or satellites ever landed on pluto
to small satelites called pioneer 10 and 11 has explored Pluto
No, Pluto is too far away from the Sun, meaning if therer was ever water on pluto, it would be ice. as far as I know, there isn't any water on Pluto
No hardware sent to Mars has ever been returned to Earth, and nothing that's landed on the Martian surface has ever been launched from it.
No, no robot has gone to Pluto, other than the onboard computers of the New Horizons spacecraft, which observed Pluto from orbit.
Spacecrafts have never visited Pluto, but the New Horizons mission is on its way there.
Yes. Sometimes Neptune is father away from the sun than Pluto. Pluto's orbit crosses Neptune's. None of the other seven planets ever get farther away from the sun that Pluto.
No instruments or space probes of any kind have ever been landed on Pluto, andeven if they had, it's impossible to prove a total negative.But from everything we do know about conditions on Pluto, betting money on thetotal non-existence of life on Pluto is a very safe bet.
no