For the first time, scientists have mapped vast, continent-scale river drainage systems on Mars — ancient networks that may ...

Dust devils on Mars form when air near the warm surface heats up and rises through cooler surrounding air, causing nearby air ...

Eight "skylights" may be entrances to underground spaces where evidence of ancient microbial organisms could be found.

NIST physicists report that clocks on Mars tick 477 microseconds faster per day due to weaker gravity and orbital effects.

Map of Mars illustrating the fourteen missions to Mars, key sites, and examples of artifacts contributing to the development of the archaeological record: (B) Viking-1 lander; (C) trackways created by ...

On Jan. 15, Mars will reach a point in its orbit that astronomers call opposition. That evening, Mars will lie opposite the Sun from our perspective. It will rise at sunset, reach its highest point at ...

We've always known Mars as the Red Planet - but it turns out, we may have had the reason why wrong. If so, it could revise much of what we know about the history of our smaller neighbor planet. In a ...

Clocks on Mars tick faster by about 477 microseconds each Earth day, a new study suggests. This difference is significantly ...

A team of researchers with a variety of backgrounds and affiliated with multiple institutions in the U.S. has taken a realistic approach to looking at the question of whether Mars could be terraformed ...

Mars is the 4th planet from the Sun and the one that has most intrigued humanity over the years. It was named after the god of war because its reddish soil gives the planet a scarlet hue in the night ...

On the evening of Jan. 13, there will be a very special kind of eclipse of the planet Mars by the Moon. This type of eclipse is called an occultation, which occurs when the Moon or other celestial ...

In this episode, Dave Eicher invites you to observe the nearly full Moon as it passes Mars on the evening of December 17. Both objects closely follow the Sun’s apparent path through the stars, called ...