Observations by the Mars Express orbiter reveal rapid changes on the Red Planet’s surface from windblown volcanic ash ...

So why is NASA deciding which rocket will launch a flagship European Mars mission? It’s a long story involving the search for ...

The Mars Express orbiter launched to the Red Planet. Twenty years later, ESA has delivered a high resolution color image of ...

A new image shows a striking contrast between Mars' desert-like terrain against dark deposits of volcanic ash.

Mars may look like a quiet, dusty world, but it’s actually buzzing with hidden electrical activity. Powerful dust storms and ...

Mars may be hostile, but it might not be entirely unlivable. In lab experiments, yeast cells survived simulated Martian shock ...

The Trump administration has unveiled an ambitious new strategy to dramatically expand the use of nuclear power in space.