A communication blackout temporarily silenced NASA's MAVEN orbiter, a crucial source of data on Mars' atmosphere. Engineers are working to recover the ...

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

Regular, alternating layers in Gale Crater may have been deposited as the result of tides raised by a moon at least 18 times ...

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

The blueprint outlines the equipment, landing-site criteria and environmental constraints that will determine what is ...

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 ...

Opening with a thought‑provoking quote, mission scientist Luther Beegle noted, “Every rock on Mars has a story, but some tell ...

NASA has lost contact with a spacecraft that has orbited Mars for more than a decade. Maven abruptly stopped communicating to ...

Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around (peri) the sun (helios).