The spacecraft that has quietly rewritten our understanding of Mars just crossed a very visible milestone: the Mars ...

As we travel from Mars’s equator toward the planet’s northern regions, we arrive at Coloe Fossae. This landscape is characterized by long, shallow grooves that cut across an area filled with steep ...

This will occur Friday, and everyone in the world can watch, weather permitting. Earth and Mars align with the sun in opposition about once every two years. But truly jaw-dropping midnight views of ...

NASA is sending two spacecraft to Mars on their new ESCAPADE mission to reveal how space weather robbed it of its atmosphere and turned it dry ...