What is not controversial is that NASA needs a new spacecraft capable of relaying communications from Mars to Earth. NASA’s best communications relay today is the Mars Reconnaissance Orbiter, which ...

For years, nuclear propulsion sat in the same category as so many ambitious space ideas, impressive on paper, always a few steps away from reality. Now NASA says that changes in 2028. The agency plans ...

Add Yahoo as a preferred source to see more of our stories on Google. Mosaic of the Valles Marineris hemisphere of Mars projected into point perspective, a view similar to that which one would see ...

They call it the Mars Atmosphere and Volatile Evolution, or MAVEN, for short, and it's the first spacecraft dedicated to the study of the Martian atmosphere and its evolution. Or, should I say, was, ...

Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...