RocketSTEM Issue #9 - October 2014 | Page 37

with different science goals. “NASA has a long history of scientific discovery at Mars and the safe arrival of MAVEN opens another chapter,” said John Grunsfeld, astronaut and associate administrator of the NASA Science Mission Directorate at the agency’s Headquarters in Washington. “Maven will complement NASA’s other Martian robotic explorers— and those of our partners around the globe—to answer some fundamental questions about Mars and life beyond Earth.” “Stepping back and thinking what this represents it amazing to think about what has been accomplished,” Grunsfeld said at the briefing. “We are now in orbit at Mars after 11 years of hard work,” said Bruce Jakosky, MAVEN principal investigator with the Laboratory for Atmospheric and Space Physics at the University of Colorado, Boulder (CU/LASP), gleefully at the briefing. “My heart is about ready to start again. We had an absolutely flawless performance tonight. Over the next six weeks we will do the commissioning work to prepare the spacecraft for its science mission. Four booms need to be deployed and one cap needs to be broken off.” “Early November is the official This image shows an artist concept of the trajectory of NASA’s MAVEN mission as it approached the Red Planet. MAVEN entered orbit around Mars on Sept. 21, 2014, completing an interplanetary journey of 10 months and 442 million miles (711 million kilometers). Credit: NASA’s Goddard Space Flight Center/Univ. of Colorado start of the science mission. But we’ll have five days of bonus science with the unexpected flyby of Comet Siding Spring in mid-October.” The primary mission includes five “deep-dip” campaigns, in which MAVEN’s periapsis, or lowest orbit altitude, will be lowered from 93 miles (150 kilometers) to about 77 miles (125 kilometers). These measurements will provide information down to where the upper and lower atmospheres meet, giving scientists a full profile of the upper tier. This is the first observation received from NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft and was taken by the Imaging Ultraviolet Spectrograph (IUVS) instrument just 8 hours after achieving orbit on Sept. 21, 2014. Credit: Laboratory for Atmospheric and Space Physics, University of Colorado/NASA 35 www.RocketSTEM .org 35