This astronomer turns small Eastern European country into an asteroid-spotting powerhouse

Count on Them: Stingrays And Zebra Mbuna Can Add And Subtract Small Numbers

Mammals grew big after dinosaurs died but their brains stayed small

Minamata Convention bans use of mercury satellite propellants used in electric rocket engines after a motion from Canada, the European Union, and Norway. According to the Public Employees for Environmental Responsibility (PEER), which has been fighting to ban mercury propellants since 2018.