Dark “slope streaks,” likely resulting from dust avalanches, stretch across an area of Mars called Acheron Fossae in this ...

Mars has lost immense amounts of water over it lifetime, and scientists aren't sure exactly how. New research hints that the ...

For decades, scientists have theorized about how Mars reached its current state. Many believe that the Red Planet's surface ...

Researchers recently found a possible reservoir of liquid water more than 11 kilometres below Mars's surface – the latest in a long series of potential water discoveries on the Red Planet ...

Enough water to cover the surface of Mars has been discovered within the crust, said The Sun, with profound implications for our understanding of the planet and potentially providing "proof of ...

An analysis led by the University of Chicago of Mars Science Laboratory Curiosity rover data may explain why the planet was ...

Mars is extremely cold, and for subglacial water to exist on the planet in the liquid form, there would have to be a source of heat, such as geothermal energy.

Scientists investigated how much water Mars once had, before the planet lost it to space and elsewhere. They found the now-desert world could have had a water content similar to Earth.

Researchers have identified what they believe could be oceans' worth of water on Mars. There's just one snag: it's deep underground.

Researchers are looking underfoot to uncover the mysterious past of Mars: Martian regoliths in the soil. Their water storage capabilities may help us understand the change in water on Mars over time.

A new map of distribution of minerals on Mars reveals the history of past water abundance on the Red Planet and could even shape future space missions.

The European Space Agency has shared a water map of Mars that traces the planet's history and points to potential resources for future missions.