MARS
n. uncountable A1 Beginner US //ˈmɑɹz// UK //mˈɑːz// mars
n. the fourth planet from the sun, known for its red color. It is the planet most like Earth in our solar system.
n. the fourth planet from the sun in the solar system, noted for its reddish appearance due to iron oxide on its surface.
Scientists are looking for signs of water on Mars.
Future space missions aim to land humans on Mars to study its thin atmosphere and rocky terrain.
The exploration of Mars has transitioned from telescopic observation to sophisticated robotic landings, providing data that suggests the planet once possessed a much more hospitable environment.
Usage
Proper noun; almost always used without an article.
Pitfall
the MarsMarsUnlike 'the Earth' or 'the Sun', names of planets like Mars do not take the definite article.