Mars did have complex carbon. A NASA rover found its hiding place.

NASA's Curiosity rover took this selfie at a site on Mars where it drilled a sample to search for organic molecules in ...

Molecules Found on Mars for First Time Confirm Planet Once Had 'Right Chemistry to Support Life,' NASA Says

Seven of the organic molecules were found for the first time ever on the Red Planet, including compounds that are chemical ...

NASA makes major new discovery on Mars

Several of the newly identified molecules are considered foundational to life’s chemistry.

NASA's Curiosity Rover Discovers Most Diverse Organic Molecules On Mars, Raising Hopes Of Ancient Life

Scientists say these findings will help guide future missions to Mars and other planets.
Reuters

NASA plans new rover for Mars 2020 mission

(Reuters) - NASA's next mission to Mars in 2020 will feature a souped-up unmanned rover vehicle to search for signs of ancient microbial life in areas of the uninhabitable red planet. The successor to ...