NASA says the discovery of carbonate suggests the ancient Martian atmosphere contained enough carbon dioxide to support liquid water on the planet’s surface. As the atmosphere thinned ...

NASA says the discovery of carbonate suggests the ancient Martian atmosphere contained enough carbon dioxide to support liquid water on the planet’s surface. As the atmosphere thinned ...

CALGARY - The lead author of a new study pointing to more proof of water on Mars says it brings scientists a step closer to determining whether the planet was ever capable of supporting life. But ...