Searching for small fossils in big rocks requires specialized tools --tools that scientists could also use to look for evidence of life on Mars in rocks that may be similar on both planets.

Trump says Americans should look to the stars, by sending astronauts to Mars.

NASA has announced it is moving forward with several plans to return rock samples from Mars.

The rocket is the largest ever built. It has yet to complete a full test flight, but the third time might be the charm.

Mars is seen as the next frontier in space exploration. But given the hostile environment on the red planet, is there a good reason why?

The agency is accepting applicants for the second cohort of its Mars simulator mission. Participants will live and work from a 3D-printed, 1,700-square-foot facility at NASA's Houston space center.

A Texas undergrad is investigating how to grow vegetables on Mars — and has cultivated test samples of English peas in simulated Martian soil, with fertilizer from fly larvae.

Getting Starship off the ground is costing the commercial spaceflight company billions of dollars at a time when money is tight. Some analysts think more funding will be needed.

NASA's Mars Reconnaissance Orbiter snapped the uncanny photo in December. Eyes are formed by craters. A hill with a "V-shaped collapse structure" resembles a snout.

InSight's end has long been in sight, with NASA warning that it would likely be inoperative by the end of the year. The lander went quiet this weekend and shared a tweet it said might be its last.

"Iceland. Better than space." That's the new tagline from Iceland's tourism board. We asked the head of Visit Iceland why her country might have an edge over space — and consulted NASA as well.

Ten years ago today, NASA's Curiosity Mars rover successfully commenced its mission to explore the possibility of life on mars. Here's what it has discovered.

NASA engineer Nagin Cox lives on Earth but works on Mars time, where days are longer and time works differently. Her work with the rovers has entirely changed the way she thinks about time on Earth.

NASA and the European Space Agency are gearing up to bring home a pristine sample of Martian rock. But given the small chance of life on the red planet, they have to grapple with safety questions.

NASA and the European Space Agency are gearing up to bring home a pristine sample of Martian rock. But given the small chance of life on the red planet, they have to grapple with safety questions.