Mars

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.

International oversight would reduce risks, but could be "a politically sensitive and contentious matter."

Martian glaciers are mostly pure ice across the Red Planet, suggesting they might potentially be useful resources for any explorers that might land there one day, a new study finds.

Looking at dunes and other rock formations on both Earth and Mars can tell scientists the environmental conditions that created them