Mars

Surprising colors and stunning features are captured in a new image of Mars' surface.

Mineral-rich layers of clay suggest that ancient life could be possible on the Red Planet

Our Red Planet explorers may encounter a peculiar threat.

Parisian astronomer Camille Flammarion brought used science fiction to bring Mars to life

"Returning the scientifically selected samples that await us on Mars, as part of a balanced portfolio, will help to ensure the US does not cede leadership in deep space to other nations, such as China."

For centuries Mars has been called "the Red Planet" and there's a scientific reason why.

NASA's 2001 Mars Odyssey orbiter captures one of the Red Planet's biggest volcanoes peeking over clouds at dawn.

The Mars Express probe captured a striking new view of a Martian crater that holds clues to the planet's dynamic history spanning billions of years.

The core of the Red Planet may be filled with sulfur.

A new study debates the complex ethical questions that must be considered if we're to terraform Mars and lays the blueprint for a potential path forward.