New NASA findings reveal that the tiny, fiery world includes some unexpected features
Big news from Mars may turn out to be more modest than it sounds
Dramatic images going wide for the first time tell a surprising tale of Martian eruptions
New findings by a venerable NASA orbiter reveal a new dimension to Martian weather systems
Even before the Curiosity Mars rover fully gets to work, NASA is planning its newest mission to the Red Planet
Take a look at 10 of the most fantastic projects that NASA hopes will be inspiring people long after Curiosity has finished exploring Mars.
The rover pulls off an improbable landing — and fires up its instruments for two years of research
Stunning images of the sun, Earth and far-away locales in our roundup of cosmic views from July 2012.