The Conversation Scientists have for the first time detected molecular oxygen (O2) in a comets coma, the cloud of gas surrounding it when it moves close to the sun. The discovery, which challenges our understanding of how the solar system formed, was made by the European Space Agencys Rosetta spacecraft orbiting comet 67P/Churyumov-Gerasimenko . The
Republican presidential candidate Ben Carson, whose poll numbers have taken off thanks to enthusiastic populist support, seems to hold a more skeptical view of voters than he usually displays on the campaign trail. In a speech from last year, Carson said in reference to the American people, Many of them are stupid, Mother Jones reported Tuesday.