Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

Ancient shoreline features hint that water on Mars once formed a vast ocean.

Using images from cameras on Mars orbiters, an international research team has discovered structures on Mars that are very ...

geological signatures indicate that around 3.4 billion years ago, a connected oceanic system existed on a planetary scale, ...

NASA launched a contest this week for plans to produce food on Mars, located about 140 million miles from the beaches here on ...

Even though the Red Planet's atmosphere is thin, wind is still one of Mars' most relentless sculptors.

Mars is absolutely dripping with evidence that the red planet was once a striking blue, complete with glistening lakes, ...

It’s a virtual mission to Mars. Our first mission to Mars may still be a ways off, but people can take a virtual tour of the Red Planet thanks to a brand new video by the Mars Express Orbiter. People ...

For centuries Mars has been called "the Red Planet" and there's a scientific reason why. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This ...

The snapshots detail features and topography in the Red Planet's Acheron Fossae region. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The ...