@sciencemagazine: Some #bacteria manage the feat, but until last year, no eukaryote—an organism with a complex cell, such as plants and animals—was known to “fix” nitrogen from the atmosphere, turning it into ammonia, which plants can use to make proteins and other essential molecules. That changed with the discovery of “nitroplasts,” unique nitrogen-fixing compartments in the cells of marine algae. #ScienceTok #STEM 🎥: BLACKBOX GUILD/POND5; TURVENTUR/POND5; BBV/GETTY IMAGES; BLOOMBERG VIDEO/GETTY IMAGES 📝: M. CANTWELL/SCIENCE