A crewed expedition to Mars promises to push the absolute limits of human endurance. To grasp the sheer scale of the journey, ...

Most planetary scientists agree that Mars’ extreme conditions would be uninhabitable to life as we know it. New research, however, suggests that we might be underestimating the hardiness of lichens.

Visit Mars as it might have looked billions of years ago. Not frozen and dry, but wet, warm, and alive with flowing water. Across vast highlands near the Martian equator, deep river-like valleys snake ...

The orbital period of an asteroid provides clues to the shortest path to the Red Planet.

Mars may be drenched beneath its surface, with enough water hiding in the cracks of underground rocks to form a global ocean, new research suggests.The findings released Monday are based on seismic ...

Mars has captivated scientists and the public alike for centuries. One of the biggest reasons is the planet’s reddish hue, earning the fourth rock from the sun one of its most popular nicknames — the ...