A new map of Mars has revealed mysterious structures ... This isn't the first time that scientists have uncovered oddities ...

Researchers have found new evidence for a massive subsurface ocean on Mars, again raising the possibility of microbial life lurking deep below the Martian surface ... to create a map of the ...

When Italian astronomer Giovanni Schiaparelli peered at Mars through a powerful telescope in the late 1800s, he observed dark channels raked across its surface. These features became the key ...

"Models to date that estimate the distribution of surface and subsurface water on ... studies that can lead to subsurface water maps of Mars.