For a short amount of time with enough food and water they will be able to orbit Mars.
They use robots. Yes. They also get data from orbiting spacecraft.
Yes, humans can stand on Mars. Mars has a surface similar to Earth, so with the right technology and equipment, humans can walk on the surface of Mars. However, the thin atmosphere and lack of oxygen on Mars would make it challenging to survive without protective gear.
Phobos is one of the moons of Mars. It is the larger of the two moons orbiting Mars and is an irregularly shaped object with a heavily cratered surface.
The surface area of Mars is 144,798,500 km2. This is about the same as all the above sea-level surface area of Earth.
The gravitational force exerted at the surface (and above the surface) of Mars is weaker than that here on Earth. The reason: Mars has less mass than earth.
No. A meteor that gets to the ground is a meteoroid. An Asteroid is an orbiting body between Mars ans Jupiter.
Mars' moons are Phobos and Deimos. No other known natural objects are orbiting Mars. But humans have sent three satellites into orbit around Mars. Mars Express (ESA), 2001: Mars Odyssey (NASA) and Mars Reconnaissance Orbiter (NASA).
Mars does not orbit the Earth. Mars orbits the Sun, as does the Earth.
Mars has two satellite moons, Deimos & Phobos
If there is, neither any orbiting probes nor any robotic rover on the surface has relayed the image to mission controllers on Earth yet.
There are several such planets. As far as I know, at present they are: Mercury, Venus, Earth, Mars, and Saturn.
The Rover mission confirmed that Mars once had liquid water on its surface.