NASA creates a cost-effective plan to search for life on Mars

Is there life on Mars? NASA is still trying to find out, discovering evidence of water in a Martian meteorite just over a week ago. But though scientists are happy to investigate meteorites and live vicariously through robotic rovers roaming the Red Planet, they’re really itching to get their hands on samples scooped right off the Martian surface to analyze here at home. Now, a team at NASA believes they can do so cost-effectively, as soon as 2022, by relying on commercial spaceflight provider SpaceX for a little help.