'Sustained Program of Exploration': 20 Years Since the Arrival of the Mars Global Surveyor

Artistic rendering of Mars, made from images taken with NASA’s Mars Global Surveyor spacecraft. Image Credit: Kees Veenenbos/MOLA Science Team/NASA

Twenty years ago, this week, NASA’s Mars Global Surveyor settled into orbit around the Red Planet, to begin what NASA described as “a sustained program of exploration” of our third-closest celestial neighbour after the […]

All-Round View of the Red Planet: 20 Years Since the Launch of Mars Global Surveyor

Artistic rendering of Mars, made from images taken with NASA’s Mars Global Surveyor spacecraft. Image Credit: Kees Veenenbos/MOLA Science Team/NASA

“And we have liftoff of Mars Global Surveyor, as America begins its journey back to the Red Planet,” came the announcement as a Delta II rocket thundered away from Launch Complex (LC)-17A at Cape […]

New Study Helps Answer Mystery of What Happened to Mars' Early Atmosphere

Mars used to have a thicker atmosphere and water on its surface, but what happened to that atmosphere has been a mystery. New research may finally help answer that question. Image Credit: M. Kornmesser/ESO

The question of how Mars changed from a once wet world to the much colder and drier one we see […]