The molecules, while not a direct sign of life, still signal the existence of complex chemistry on the Red Planet.

Recent discoveries on Mars have sparked excitement in the scientific community as NASA’s Mars Reconnaissance Orbiter (MRO) ...

Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

Nighthawk would fly to altitudes of up to 4,920 feet (1,500 meters) above the Martian average, covering distances of up to ...