NASA wants to send an ambitious fleet of helicopters to soar through Martian skies—but scientists fear the endeavor could crater existing Red Planet research missions.

Mars may once have hidden enormous seas of magma beneath its surface, giving the Red Planet a much more complex interior than ...

Mars, once a much wetter and more dynamic planet, is now a dry and inhospitable desert. The mystery of how the red planet lost its water has fascinated scientists for decades. A groundbreaking study ...

A new study may have revealed the true source behind how the Red Planet got its hue. It’s been long thought that Mars shines red due to the rusted iron minerals within the dust that covers the planet ...

For decades, scientists have theorized about how Mars reached its current state. Many believe that the Red Planet's surface may have once been covered in rivers and oceans. But, if that's really the ...

Researchers are creating advanced simulations that will provide a deeper understanding of Mars's climatic history and help to determine whether it was once able to sustain life. An international team ...

Was Mars a friendly planet for water, even life, in its ancient past? Huge channel networks run across its surface. Rocks show signs of water immersion. Yet pictures sent back from NASA's Curiosity ...

Mars holds a special place in the solar system. It represents marginal habitability. This means it transitioned from warm and wet and potentially hospitable, to cold and dry and inhospitable. "Mars is ...

Scientists have detected complex organic matter in an ancient river valley on Mars, specifically within Jezero Crater. This ...