Dubbed "araneiform terrain," the Mars surface formations span over a half-mile long and have hundreds of branches that ...

The "spiders" are actually features in the Martian crust called "araneiform terrain," and scientists now understand how they might have formed.

An enormous plume of magma is slowly but steadily rising underneath Mars and could one day provoke an eruption of the solar system's tallest volcano. An enormous plume of magma over a thousand miles ...

Researchers have recreated the bizarre spider-like features seen on the surface of Mars for the first time ever. The ...

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

A new gravity map of Mars reveals hidden structures and active mantle processes, challenging established geological theories.

By Deane Morrison During, Mars and Jupiter continue to go their separate ways, widening the gap between them from 9 to 23 degrees. Both planets are surrounded by bright stars usually seen on winter ...

Studies of gravity variations at Mars have revealed dense, large-scale structures hidden beneath the sediment layers of a ...

Europa Clipper is officially slated to launch on October 10, a month from today, following crunch-time reviews of the ...

The history of our solar system is a turbulent one. The infamous Chicxulub asteroid, which decimated the dinosaurs 66 million ...

NASA on Monday approved next month's launch to Jupiter's moon Europa after reviewing the spacecraft's ability to withstand ...