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

MAVEN was built to last in orbit until 2030 — that's not looking likely anymore.

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

Look to the west on the nights following June 18 to see Mars sweep past the bright star Regulus to enter the Spring Triangle - a formation of three prominent stellar bodies that are visible as spring ...

Mars will make its closest approach to Earth this weekend while rising to its highest point in the night sky. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

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

"It's exciting to explore a new option for the making of Phobos and Deimos." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Computer simulations ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

“This exciting discovery opens up new possibilities for auroral research and confirms that auroras could be visible to future astronauts on Mars’ surface." When you purchase through links on our site, ...

The moon and Mars will share a close approach in the night sky tonight (Nov. 20), coming close enough together for a nice pairing for the naked eye or binoculars. As seen from the United States, the ...

Mars and the star Regulus are set to put on a dazzling show tonight as the Red Planet passes remarkably close to Leo’s brightest star in a striking celestial pairing — and you can watch it live online ...

NASA's Curiosity rover has new insights into how Mars might have changed from a potentially habitable, water-rich planet to an absolutely uninhabitable desert. When you purchase through links on our ...