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' ...

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

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

President Donald Trump made a bold promise to America minutes after taking the Oath of Office: pledging that an American flag ...

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

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 ...

FOUR planets are visible in the night sky. You will have to battle January clouds, but here is how to find them.

It’s a phenomenon known as a “planet parade,” where the planets appear to be marching across the night sky. Stargazers will ...