Today's Takeaways: Striking ISIS, The Mysteries of Mars, and Woody Guthrie's New York City
This image shows an artist concept of NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) mission. On Sept. 21, 2014, MAVEN entered orbit around Mars/
( NASA's Goddard Space Flight Center / NASA )
( NASA's Goddard Space Flight Center / NASA )
