Here's what the ancient ocean would have looked like on Mars: ... "With Mars losing that much water, the planet was very likely wet for a longer period of time than previously thought, ...

Vast quantities of liquid water are a memory from Mars' distant past, but visual artist and citizen scientist Seán Doran has imagined what the Red Planet would look like if it were covered in lakes.

According to Kevin Gill, like this. Created using elevation data from NASA’s Mars Reconnaissance Orbiter, this rendering shows what Mars would have looked like if water was present on the surface.

Dark “slope streaks,” likely resulting from dust avalanches, stretch across an area of Mars called Acheron Fossae in this ...

But what would such a watery Mars have looked like? Kevin Gill, a software engineer, wanted to find out. ... Scientists Discover That Mars is Full of Water. You Might Also Like.

Don’t be fooled – this epic video of plump clouds, clear lakes and gorgeous landscapes isn’t from some remote vacation spot on Earth. This could be what Mars looked like about 4 billion ...

More than 3 billion years ago, Mars was warm, wet, and had an atmosphere that could have supported life. This artist's rendering shows what the planet may have looked like with global oceans based ...

"When we think about what Mars looked like 3.5 billion years ago, we probably should be thinking about an environment that in some ways looks a lot like Earth," said University of Texas Associate ...

Mars looks like it used to have water—perhaps even entire oceans. But not today. Today, scientists can’t even decide whether it’s got slight trickles darkening the dirt on its mountainsides.

Mineral deposits like these are common sights across Mars and result from ancient water mixing with ancient rock. Still, it's rare to see a deposit that's so perfectly flower-like, NASA ...

— -- NASA's Curiosity rover has now confirmed what scientists have long suspected -- that water anywhere from ankle to waist deep once flowed on Mars' surface. The conclusion, scientists said ...