I think that they have tried but failed. But i could be wrong...
The First Aircraft that ever visited the planet is the dumbest question, Don't you know how to specify questions fool?
yes
venus was the first planet visited by the American spacecraft
No, Mars is not the most visited planet in our solar system. The most visited planet is Earth, followed by Mars and Venus. Multiple spacecraft have been sent to Mars to study its surface and atmosphere, but Earth remains the most visited due to human presence and satellite communications.
It's the closet and rather similar to the earth.
Yes, several spacecraft have visited Mars. These include the Mars rovers (such as Curiosity and Perseverance), landers (such as InSight), and orbiters (such as the Mars Reconnaissance Orbiter and MAVEN) sent by various space agencies, including NASA and the European Space Agency. These missions have provided valuable data about the planet's atmosphere, geology, and potential for past habitability.
No person has ever visited Mars yet.
As for as is known no earthlings have ever been on Mars.
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.
No humans have visited Mars yet. Only robotic spacecraft, like the Mars rovers, have been sent to explore the planet.
Mars has constantly been visited by spacecrafts. The first spacecraft to visit Mars was the Mariner 4. After that Mars has been visited by numerous spacecrafts like: Mars Pathfinder, Mars Global Surveyor, Mars Odyssey, Mars Express and the Mars 2 which was the first spacecraft to land on Mars.
Since no humans have visited Mars, it is unsure. But Mars is often mistaken for UFOs because of how bright the planet is.