Billions of years ago, rain may have shaped where the chemistry of life could begin on Mars—and now scientists have mapped exactly where a crucial ingredient landed. Researchers have traced the delivery of formaldehyde, a vital prebiotic molecule, across the Martian surface in a breakthrough study that could revolutionize our understanding of the Red Planet's early organic evolution.

This discovery is more than scientific curiosity. By identifying where these life-building molecules accumulated on Mars' ancient surface, researchers have created a roadmap for future missions hunting for signs of the planet's past habitability and potential microbial history. The findings suggest that Mars once had the chemical conditions necessary for life to emerge. Read the full story →

Today's takeaway: Understanding where prebiotic molecules landed on Mars could be the key to finally answering whether life ever existed on our neighboring planet.