Caltech scientists published a study using NASA Curiosity rover imagery showing the past existence of warm water on Mars.

One of my gripes with "The Martian" movie was the depiction of the winds on Mars. The lower air density means that the sort ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

Midair collision of passenger jet and military helicopter outside the nation's capital was the first mass fatality commercial ...

Experts told Newsweek about the difficulties of reaching Mars as the United States faces complex challenges in space policy.

New research reveals ancient ripples on Mars, providing compelling evidence of long-lost lakes that once existed 3.7 billion ...

The enchanting dunescape stretches over 43 miles (70 km) along the coast and over 30 miles (50 km) inland. Lençois translates ...

Welcome to your February horoscope! The month of Valentine’s Day begins—in a way that’s almost too on the nose—with some of the year’s most romantic aspects. Venus, exalted in Pisces, meets up with ...

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

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for decades. Now, Harvard researchers think they have a good explanation for a ...