A team of geologists studying Mars has found only traces of carbonates on the planet’s surface, a finding that suggests oceans never existed on the planet. The team, led by Phil Christensen of ...

A new theory about how oceans and volcanoes interacted during the early history of Mars supports the idea that liquid water was once abundant and may still exist underground. Geophysicists propose ...

Water on Mars has been an incredibly hot topic this year. Researchers have, at times, butted heads with others, and for every piece of evidence … ...

B illions of years ago, Mars may have looked very different. The Mars ocean theory has been a subject of scientific debate ...

"We estimate the flooding of the Utopia Planitia on Mars was approximately 3.68 billion years ago. The ocean surface was ...

Scientists have come up with fresh evidence supporting the theory that a vast ocean covered much of the Martian northern hemisphere 3.5 billion years ago. The work paints a picture of a possible ...

In the past decade, astronomers have observed clay materials on Mars that seem to indicate large bodies of water once filled the Martian surface. In the past decade, ...

New theory suggests Mars was once cold and wet. by Bob Yirka , Phys.org ...

In recent years, NASA has launched wave after wave of robots to Mars. One of their goals is to find evidence that liquid water once flowed on the surface of the Red Planet and carved its ...

New theory questions Mars' watery past. By Nola Taylor Redd. September 10, 2012 / 12:11 PM EDT ...

The “Mars ocean theory” has long been the topic of discussion among scientists and cartographers due to Mars’s geography, which suggests a large northern ocean once existed on its surface.

Scientists have come up with fresh evidence supporting the theory that a vast ocean covered much of the Martian northern hemisphere 3.5 billion years ago. The work paints a picture of a possible ...