Yes. A spacecraft has visited this planet. They came in peace. The space creatures discovered that humans fought wars with each other. As a result they wanted nothing to do with such wild animals so they left and went to a more civilized world.
No spacecraft has visited all the planets.
I think that they have tried but failed. But i could be wrong...
Voyager 2, which flew by the giant planet in 1989.
voyager 2
Voyager 2 flew by Neptune in 1989, coming within 30,000km of the planet.
The First Aircraft that ever visited the planet is the dumbest question, Don't you know how to specify questions fool?
Yes, but they have not landed.
All of the eight planets have been visited or orbited by space probes.
venus was the first planet visited by the American spacecraft
A spacecraft left earth in late 1957 and returned in early 1958. Other than human spacecraft, no alien space craft has ever left or come to visit our planet, that we know of. It is possible some alien space craft may have visited earth millions of years ago. It is highly unlikely any craft has done so within the past few centuries.
yes
Just one.