The CLASP2 space experiment achieves an unprecedented map of the Sun's magnetic field

U.S. Officially Rejoins Paris Climate Agreement

'Astronaut’ means 'star sailor.' NASA chose it in 1958 over 'cosmonaut,' or 'universe sailor.' But "Why 'astronaut' won out," says a NASA Johnson Space Center historian, "is a mystery." The reason we chose that term for our space travelers "Was never recorded in NASA’s own historical documents."

Scientists Clone Endangered Black-Footed Ferret For The First Time And She's Adorable