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

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

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

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

The northern plains of Mars, marked by thousands of mounds and hills, hold significant evidence of the planet's watery past.

Six planets, Mars, Jupiter, Uranus, Neptune, Venus and Saturn can be seen in the night sky. You'll need binoculars or a ...

Rootless cones are small volcanic landforms ranging from several to several hundred meters in diameter, formed by continuous ...

Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic mission may investigate the area one day.

Four planets will be in the parade in January while seven will align in February. Here's how to see the events.

We explore how long it takes to get to Mars and the factors that affect a journey to the Red Planet. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

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

Planetary Parade A rare alignment of Venus, Saturn, Jupiter, Mars, Uranus, and Neptune is visible this month and into early ...