Daniel P. Glavin

4 weeks ago | earthsky.org | Paul Scott Anderson |Daniel P. Glavin

Space NASA’s Curiosity rover has found the largest organic molecules on Mars we’ve yet seen. They seem to be the remains of fatty acids. Video via NASA Goddard. Did life ever exist on Mars? Rovers have found various types of organic molecules, but whether any of them relate to ancient life remains unknown. NASA’s Curiosity rover has now discovered the largest known organic molecules to date. They are three kinds of long-chained carbon molecules that scientists say are the remains of fatty acids.