The car-sized rover Curiosity had a clean landing on Mars five months ago. But planetary missions didn’t always run so smoothly at NASA’s Jet Propulsion Laboratory. Mariner 3, a probe sent to do a ...

As humanity prepares to take its first steps on Mars, a comprehensive report released by the National Academies of Sciences, ...

As a contributor to the documentary Blue Planet Red, I would like to address the criticism in Simon Ings’s review that xenon-129’s presence in the Martian atmosphere implies ancient nuclear conflict ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Living in today’s age of ambitious robotic ...