In this week’s Science Quickly news roundup, we dive into NASA’s new discovery of organic molecules on Mars, including some that have never been found there before. We also explore how human migration may have been shaped by a surprising factor: malaria. Plus, we go over the encouraging results of a new study that links declines in youth suicides in the U.S. to the adoption of the three-digit 988 Suicide & Crisis Lifeline in 2022. And finally, we’ll turn to some interesting findings about AI voice clones. Recommended Reading: “NASA’s Curiosity Finds Organic Molecules Never Seen Before on Mars.” NASA’s Jet Propulsion Laboratory. Published online April 21, 2026 “Malaria shaped human spatial organization for the past 74 thousand years,” by Margherita Colucci et al., in Science Advances, Vol. 12, No. 17; April 22, 2026 Young adult suicide rates dropped after U.S. launched 988 hotline  “Voice clones are easier to understand in noise than their human originals: The voice cloning intelligibility benefit,” by Patti Adank and Han Wang, in Journal of the Acoustical Society of America, Vol. 159, No. 4; April, 2026 E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover! Discover something new everyday: subscribe to Scientific American and sign up for Today in Science, our daily newsletter. Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith. Learn more about your ad choices. Visit megaphone.fm/adchoices