Mars is absolutely dripping with evidence that the red planet was once a striking blue, complete with glistening lakes, ...

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

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

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

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

A Mars spacecraft has now been AWOL for more than a month. But NASA hasn't given up hope of restoring contact with the MAVEN ...

It is a turbulent week for Russia, from stark warnings that “poisonous” pollution is cutting down life expectancy, to a UK ...

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

For astronaut safety and to bolster success of the human exploration to come later, NASA needs an end-to-end demonstration of ...

New research suggests Mars was once a blue planet, as scientists identify river deltas and signs of a vast ancient ocean on ...

On Jan. 18, 2004, the European Space Agency's Mars Express successfully mapped Mars' south pole, and, in a first, revealed ...

Mercury will conjunct Mars in Capricorn on Jan. 18, setting the stage for a solid plan of action that's built on a steady ...