Though it's a cold, dead planet, Mars still has its own natural beauty about it. This image shows us something we'll never see on Earth.

Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, ...

Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' dust storms, a new study suggests.

From celebrations large and small, to the thousands who became new citizens and tens of thousands of others who rallied for ...

Starting at 12:30 p.m. ET (1730 GMT) on Saturday (Jan. 25), astrophysicist Gianluca Masi of the Virtual Telescope Project ...

Ancient ripples suggest a warmer, wetter past for the Red Planet that supported open water on its surface.

The United States will once again consider itself a growing nation, one that increases our wealth, expands our territory, ...

Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy, which has baffled ...

NASA was formed in 1958 "to provide for research into problems of flight within and outside the Earth's atmosphere, and for ...

Did you know that Mars at opposition is a special time when Earth and Mars are closest? This happens when Earth passes directly between Mars and the Sun. At this point, Mars appears larger and ...