Clocks on Mars tick faster by about 477 microseconds each Earth day, a new study suggests. This difference is significantly ...

CAPE CANAVERAL, Fla. — NASA has lost contact with a spacecraft that has orbited Mars for more than a decade. Maven abruptly ...

For the first time, scientists have mapped vast, continent-scale river drainage systems on Mars — ancient networks that may ...

Curiosity has been exploring the surface of Mars since 2011, but what it found inside a rock last year has changed our ...

MAVEN has circled Mars for more than a decade, exploring the planet and relaying data from robots on the surface.

Maven, an acronym for Mars Atmosphere and Volatile Evolution, abruptly stopped communicating with ground stations on Dec. 6.

Launched in 2013, Maven began studying the upper Martian atmosphere and its interaction with the solar wind once reaching the red planet the following year. Scientists ended up blaming the sun for ...

NASA said this week that it was working fine before it went behind the red planet. When it appeared again, there was only silence.

NASA has lost contact with one its three spacecraft orbiting Mars, the agency announced Tuesday. Meanwhile, a second Mars ...

Earth's climate has swung between ice ages and warmer periods for millions of years, driven by subtle changes in our planet's ...

The story of the red planet, it turns out, may be due for a revision. At one time, experts thought that Mars was covered with fields of rocks with iron trapped inside. Somehow or other, and over a ...