Hydrogen chloride (HCl) gas was seen during Mars’ cold aphelion season, when none was expected; the detection is best explained by ongoing igneous processes...
A new image from ESA’s Mars Express shows a network of long grooves and scratches in Tantalus Fossae, a large fault system in the Arcadia quadrangle...
In this stunning image taken by ESA’s Mars Express spacecraft, Mars is seen with north at the bottom, and the equator at the top.
A stunning view of...
