Rover, a noun, is defined as a person who roves; a wanderer. Mars, also a noun, has dual meanings; in astronomy, the planet fourth in order from the sun, and in mythology, the ancient Roman god of war and agriculture, identified with the Greek god Ares.
Curiosity, the name of the Rover and also a noun, means the desire to learn or know about anything.
Depending on the elliptical placement of Mars determines how long it will take you to arrive.