The discovery suggests that parts of Mars may once have supported tropical-like climates, complete with heavy, sustained rainfall.

“The presence of liquid water [on Mars] is a broad topic that includes rains, rivers, lakes, as well as oceans,” says Ezat ...

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

Bright white rocks found by NASA’s Perseverance rover hint at ancient Martian rain lasting millions of years, raising new questions about how wet Mars once was and what those conditions might mean.

For the first time, a Mars rover has crossed alien ground following a route drawn up not by human engineers, but by artificial intelligence. NASA’s Perseverance Mars rover recently completed a set of ...

On January 25, 2004, NASA's Opportunity rover landed on Mars! This was the second of NASA's twin Mars Exploration Rovers to ...

Since humans first started observing Mars, the existence of nocturnal ice clouds on the Red Planet has been known, primarily through daytime observations and sophisticated climate models. Twilight ...

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

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too cold.

SpaceX CEO Elon Musk has yet again explained why Mars is a crucial mission for humans. His SpaceX ambitions include multiple ...

Advances in technology have reopened the debate over terraforming Mars, shifting it from an impossible dream to a long-term scientific and ethical question.

New simulations show red planet affects Milankovitch cycles that shape how solar energy is distributed on Earth over millions ...