In the not-too-distant future, "artificial astronauts" could fly as actual crew members on human missions to Mars, and elsewhere in space.
A recent close-up shows a turtle-shaped rock on the surface of Mars, captured by NASA's Perseverance rover.
Data from NASA's InSight lander suggests there's a chunky mix beneath the surface of Mars.
This quiz will challenge your knowledge of Mars' features, missions, and mysteries.
As part of its exploration of Mars's boxwork landscape, Curiosity found itself in a fork-in-the-road
Blue Origin has used its Blue Ring spacecraft platform to develop the Mars Telecommunications Orbiter, which the company says could aid future NASA missions to the Red Planet.
The medieval-looking "helmet" is the latest addition to Mars' gallery of odd-shaped rocks.
ESA's Mars Express spacecraft has been imaging the dynamic Acheron Fossae region of Mars for more than 20 years.
In a Q&A interview, author and science writer David Baron discusses the turn-of-the-century Mars craze, which he covers in his new book, "The Martians."
Scientists have spotted a mysterious mineral on Mars that may be new to science — and could help reveal some Red Planet mysteries.