The two crossword solutions for the term 'Mars Feature' are 'CANAL' and 'Icecap'. Mars is the fourth planet from the Sun and is known for its red-orange hue. It is also home to many features, including canals and icecaps. Canals are long, narrow waterways that are often used for transportation and irrigation. Icecaps are large masses of ice that form at the poles of a planet. On Mars, these icecaps are composed of frozen carbon dioxide and water.