Add Yahoo as a preferred source to see more of our stories on Google. NASA's Viking landers were the first spacecraft to successfully touch down on the surface of Mars. NASA/JPL-Caltech via AP Finding ...

We may have detected Martian life 50 years ago.

The initial NASA mission to Mars has yielded controversial results and may have damaged life on Mars. A study shows new findings about the Viking landers.

Professor Brian Cox fulfils a childhood dream by going behind the scenes at Nasa's Jet Propulsion Laboratory (JPL), mission ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American We humans can now peer back into the virtual ...