Unlike other Martian cloud structures that seem to poof in and out of existence, this one has staying power.
Find out everything there is to know about Mars and stay updated on the latest Mars news with the comprehensive articles, interactive features and Mars pictures at LiveScience.com. Learn more about this fascinating planet as scientists continue to make amazing discoveries about Mars.
There are plenty of challenges to putting people on Mars, whether you look at the rocket, the astronaut or the planet itself.
Curiosity photographed an odd, flat object that mission team members initially thought might have fallen off the car-size robot. But the "debris" turned out to be a Red Planet rock.
Four scientists made the case Aug. 1 to a panel of senators that they should fund NASA's search for life beyond Earth.
Will the weather cooperate for you to get a good look at Mars at its best during its closest approach this week?
Just because we'll never be able to give one sharp-eyed human a name doesn't mean there's nothing interesting to learn about the history of observing Mars.
The Viking landers that touched down on Martian soil in the 1970s may have set all the evidence for carbon-based life-forms on fire, a new study suggests.
A big sand dune blazes in an electric blue on the Red Planet in a gorgeous photo by NASA's Mars Reconnaissance Orbiter (MRO).
Bizarre rock formation known as Medusae Fossae weren't created by UFOs crash-landing, but rather by massive volcanism on the Red Planet.
NASA's long-lived Opportunity Mars rover is weathering a monster dust storm that has plunged its environs into permanent darkness.