That Was the Week That Was AST 105 17 November 2015 Taurid Meteor in Orion Rose%a: to be landed on comet in a year Maven: Mars losing ¼ lb of atmosphere/sec Leonid meteors: peak tonight Global Warming The Warmest October since 1880 (NASA GISS 11/16/15) Related: Persian Gulf could be uninhabitable before 2100 (Nature Climate Change 10/25/15) Origin of Earth’s Water Probably intrinsic. •  Isotopic raPos of ocean water match outgasses H2O match oceans, not comets •  Comets could sPll be valuable for transporPng organic molecules to the inner planets Pluto Weather Forecast: Windy •  5400 mph winds recorded on HD 189733b (more Thursday)