Mars may have a hardened heart. Marsquake reverberations detected by NASA’s InSight lander revealed that the Red Planet probably possesses a solid inner core, researchers report in the Sept. 4 Nature.

When astronauts set foot on Mars, it will be one of humanity’s greatest milestones. These first steps will be the result of decades of research, engineering, and imagination coming together, marking ...

As humanity prepares to take its first steps on Mars, a comprehensive report released by the National Academies of Sciences, Engineering, and Medicine and steered by scientists at Penn State lays out ...

Helicopters on Mars may sound like something from a science fiction novel — or perhaps just a typical "Doctor Who" episode. But actually, they're not fully confined to the world of sci-fi; after all, ...

Mars today is a frozen, dusty desert. But if you look deep inside Valles Marineris, the largest canyon system on Mars and in the Solar System, you find familiar landforms. They resemble river deltas, ...

Billions of years ago, Mars may not have been the frozen desert we see today. New simulations suggest that volcanic eruptions pumped out reactive sulfur gases, creating greenhouse effects strong ...

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the difference, showing that Mars clocks tick slightly faster—and fluctuate over the ...

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WASHINGTON — The search for past or present life should be the top science objective of future human missions to Mars, a new National Academies report concludes. The report, A Science Strategy for the ...

In science fiction movies and shows like "The Martian" or "For All Mankind", Mars is often depicted as a challenging but ultimately survivable environment for humanity. Though conditions might be ...