Experts have been working on mapping the ocean floor with traditional methods, sending ships across the water with sonar ...

Scientists are confident Mars was once abundant with water, as seen in massive flood-carved channels, ancient river valleys, ...

Water once existed in abundance of at the surface of Mars. How much of that water has been stored in the planet's crust is still unclear, according to a new analysis.

"We expect there to be water or ice in [Mars’] crust," Jakosky said in a statement. "Actually detecting it and possibly determining its abundance is challenging, but extremely important for ...

The north pole of Mars is slowly sinking under the weight of an ice cap that only formed within the past few million years. And, in the process, it's telling us something about what the planet's ...

More than 3 billion years ago, Mars intermittently had liquid water on its surface. After the planet lost much of its ...

Martian lake beds and deltas reveal the Red Planet’s watery past. But many puzzles remain, scientist Bruce Jakosky says.

Nuclear pulse propulsion is a technology that would work. It was being developed in the 1960s but it was stopped because of ...