Mars keeps refusing to behave like the dead, simple world many scientists once imagined. Each new rover trench, fractured ...

There are two small moons in orbit around Mars today, but both may be remnants of a much larger moon that had enough of a gravitational pull to drive tides in the Red Planet's lost lakes and seas ...

Regina Barber and Emily Kwong of NPR's Short Wave discuss an Earth-sized exoplanet, how ant colonies deal with disease and a possible link between volcanoes and the Black Death.

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

Our solar system didn't form by accident. This video explains the blueprint that created rocky worlds like Earth and Mars close to the Sun, and gas giants like Jupiter further out. We cover the Sun's ...

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

As humanity prepares to take its first steps on Mars, a comprehensive report released by the National Academies of Sciences, ...

As humanity prepares to take its first steps on Mars, a comprehensive report released today (Dec. 9) from the National ...

Bizarre 'bleached' rocks on the surface of Mars suggest that the Red Planet was once a tropical oasis, a new study reveals.

For several decades, it has been thought that dust devils on Mars may be able to produce spark discharges. Many lab ...

Interstellar visitor 3I/ATLAS erupted with violent ice volcanoes, shifting from quiet ice ball to active body, sparking ...