A northern summer dust storm on Mars boosted high-altitude water escape, suggesting short-lived events may play a bigger role ...

While Mars may appear round, its true shape is subtly stretched and uneven, a product of its unique geological past and ...

(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: ...