A substance poisonous to humans — hydrogen cyanide — may have helped create the seeds of life on Earth. At cold temperatures, hydrogen cyanide forms crystals. And, according to computer models reported in ACS Central Science, some of the facets on these crystals are highly reactive, enabling chemical reactions that are otherwise not possible at low temperatures. The researchers say these reactions could have started a cascade that gave rise to several building blocks of life.

Early in 2025, scientists discovered a promising new antibiotic in a soil sample from a lab technician’s backyard. The molecule, called lariocidin, is produced by the microbe Paenibacillus and shows broad activity against pathogenic bacteria, including several that are multi-drug-resistant. Now, the researchers report in ACS Infectious Diseases how Paenibacillus avoids harm by its own antibiotic — information that is crucial for developing lariocidin or similar compounds into new drug candidates.

When oily plastic and glass, as well as rubber, washed onto Florida beaches in 2020, a community group shared the mystery online, attracting scientists’ attention. Working together, they linked the black residue-coated debris to a 2019 oil slick along Brazil’s coastline. Using ocean current models and chemical analysis, the team explains in ACS’ Environmental Science & Technology how some of the oily material managed to travel over 5,200 miles (8,500 kilometers) by clinging to debris.