For an hour, HERA flew as close as 5,600 kilometers from the Martian surface, at a speed of 33,480 kilometers an hour. It ...

The discovery suggests prebiotic chemistry may have advanced further on Mars than previously observed. The analysis revealed ...

Earth may be home to the most glorious beaches in the solar system today, but 3 billion years ago, Mars might have claimed ... have to go nearly that deep to hit paydirt. Along a 0.8-mile stretch ...