Mars, the next frontier in space exploration, still poses many questions for scientists. The planet was once more hospitable, ...

In the 1970s, images from the NASA Mariner 9 orbiter revealed water-sculpted surfaces on Mars. This settled the once-controversial question of whether water ever rippled over the red planet.

At some point, iron within rocks on Mars reacted with water or water and oxygen in the air, creating iron oxide — much in the same way rust forms on Earth. Over billions of years, the iron oxide ...

Initially developed as maritime patrol flying boats for the US Navy, the Martin Mars fleet was later configured to operate as long-range transport aircraft. Some became water bombers to fight ...

The Philippine Mars water bomber, a legendary aircraft that fought wildfires in B.C. for nearly 50 years, has completed its final flight. The massive plane left its longtime base at Sproat Lake in ...

Credit: NASA/JPL-Caltech/MSSS Scientists have discovered evidence that liquid water was once exposed to the air in ancient, shallow lakes on Mars. The finding is evidence that not all water on the ...

In the 1970s, images from the NASA Mariner 9 orbiter revealed water-sculpted surfaces on Mars. This settled the once-controversial question of whether water ever rippled over the red planet.

In the 1970s, images from the NASA Mariner 9 orbiter revealed water-sculpted surfaces ... of years old. This diagram shows how a series of beach deposits would have formed at the Zhurong landing site ...

This is a pretty big deal, as ferrihydrite forms quickly in the presence of cool water, suggesting that Mars gained its hue when the planet still had an abundance of water at its surface.