Yes.
No spacecraft has ever landed on Mercury. A couple have orbited around the planet.
The space probe "Voyager 2" flew past Neptune.
Since Earth's Moon was likely formed from a chance collision, the formation of moons may not have been a stable process in the inner solar system. Any moons that formed around Venus or Mercury could have been swept away by the stronger gravity of the Sun, as might smaller moons around Earth. If Mercury or Venus ever had satellites, they were lost long ago.
There has been no landings or humans to the planet Mercury.
Mariner 10 and MESSENGER flew past Mercury.
No spacecraft has ever landed on Mercury. A couple have orbited around the planet.
The first artificial satellite ever launched into space was called Sputnik 1, not Mercury. It was launched by the Soviet Union on October 4, 1957. The successful launch of Sputnik 1 marked the beginning of the space age.
no one has ever been to mercury because there is not enough oxygen and it is too hot.
No space probe has ever landed on Mercury.
No.
We do not know, since no man has ever been to Mercury.
no. no humans have ever been to any of the other planets.
No one has actually ever stepped or been on mercury as no microbe would survive the long journey.
no but has been photographed from distance/telescope in space
No. Humans have only been on Earth and the Moon.
Yes it has, by remote space vehicles, but not by humans directly.
No. While the day side of Mercury is quite hot, it cannot burn because there is nothing flammable there.