Tag Archives: Martian

For the first time, scientists have observed that the ‘megaripples’ on Mars, huge sand waves seen on the Martian surface, are mobile structures and not ancient relics trapped in place from the distant past of the Red Planet. Megaripples, which also occur in Earth’s deserts, are generally larger than the …

Starting in July, the window opens when missions to Mars can be easily dispatched across the interplanetary gulf. If all goes well, three of those missions, ridden by NASA, China, and the United Arab Emirates, will leave Earth for the Red Planet. The number of missions, who is launching them …