6 votes Mars methane hunt comes up empty, flummoxing scientists Posted April 12, 2019 by unknown user Tags: mars, scientists, science.planetary, biology.astro, chemistry.astro, methane, author.alexandra witze, source.scientificamerican, paywall https://www.scientificamerican.com/article/mars-methane-hunt-comes-up-empty-flummoxing-scientists/ Link information This data is scraped automatically and may be incorrect. Authors Alexandra Witze, Nature magazine Word count 784 words