Mars has two moons, but they're not quite like Earth's moon. That's raised a lot of questions about where they're from, ...

Right now there is no conclusive evidence of life on Mars past or present. Nasa’s “leopard spots” are the most promising ...

Two samples from Mars together deliver the "smoking gun" in a new study showing the origin of Martian organic material. The study presents solid evidence for a prediction made over a decade ago by ...

(CNN) — Here’s a look at the exploration of Mars. The United States, Soviet Union and China are the only three countries to land a spacecraft on Mars. There have been nine successful US Mars landings: ...

Here's some background information about Mars exploration. The United States and the Soviet Union are the only two countries to land a spacecraft on Mars. Facts:There have been eight successful US ...