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

New evidence of ancient rivers suggests Mars may have been a "blue planet," thanks to an ocean spanning its entire northern ...

SpaceX's mission remains focused on establishing a city on one of Earth's nearest neighboring planets. Musk's Starship will ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

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

Mars has an active, electrically charged surface where dust storms and spinning dust devils regularly move and reshape the ...

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

Researchers uncover how Mars affects Earth’s orbit, offering new insight into the planetary forces behind ice ages.

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 ...

For anyone curious about what it's like to stand on another planet, Earth offers a few convincing previews. Mars may be 140 ...

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