Jan. 11, 2007 Dwayne Brown/Tabatha Thompson Headquarters, Washington 202-358-1726/3895 Cynthia O'Carroll/Rani Gran Goddard Space Flight Center, Md. 301-286-4647/2483 MEDIA ADVISORY: M07-003 NASA MEDIA BRIEFING ON MISSION TO STUDY AURORAS GREENBELT, Md. - NASA will host a media teleconference to discuss the Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission on Wednesday, Jan. 17, at 1 p.m. EST. THEMIS consists of five identical probes that will study the violent colorful eruptions of the Earth auroras. The satellites will to launch aboard a Delta II rocket from NASA's Kennedy Space Center, Fla., on Thursday, Feb. 15, for a two-year mission. Briefing participants: -- Craig Pollock, THEMIS program scientist, NASA Headquarters, Washington -- Vassilis Angelopoulos, THEMIS principal investigator, University of California, Berkeley -- Peter Harvey, THEMIS project manager, University of California, Berkeley -- Jim Slavin, director, Goddard Space Flight Center Heliophysics Division, Greenbelt, Md. Reporters should call 888-455-0031 and use the pass code "THEMIS" to participate in the teleconference. International media should call +1-210-234-0007. Audio of the teleconference will be streamed live at: http://www.nasa.gov/newsaudio Related images will be available at:: http://www.nasa.gov/mission_pages/themis/news/prelaunch_briefing.html For more information about the THEMIS mission, visit: http://www.nasa.gov/themis -end- To subscribe to the list, send a message to: hqnews-subscribe@xxxxxxxxxxxxxxxxxxxxxx To remove your address from the list, send a message to: hqnews-unsubscribe@xxxxxxxxxxxxxxxxxxxxxx