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

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

Mars has an active, electrically charged surface where dust storms and spinning dust devils regularly move and reshape the landscape. Mars is often portrayed as a dry, empty world, but the planet is ...

A pull in the right direction ...

This doesn’t mean Mars causes ice ages on its own. Orbital cycles are only part of the picture. Earth’s oceans, atmosphere, ...

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

Advances in synthetic biology, planetary engineering, and ultra-low-cost launch systems have dramatically altered how ...

NASA’s Mars Sample Return program faces opposition from planetary scientists following proposed cancellation, with concerns raised over Perseverance samples, future Mars missions, and international ...

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

Researchers worked out the ocean's size by finding how high the water level got in the Solar System’s largest canyon system.

NASA’s MAVEN spacecraft has provided the first direct evidence of atmospheric sputtering on Mars, revealing how solar wind has eroded the planet's atmosphere over four billion years, turning a ...