April 5, 2007 Dwayne Brown/Tabatha Thompson Headquarters, Washington 202-358-1726/3895 Cynthia O'Carroll Goddard Space Flight Center, Md. 301-286-4647 MEDIA ADVISORY: M07-36 NASA MEDIA BRIEFING ON MISSION TO STUDY EARTH'S HIGHEST CLOUDS WASHINGTON - NASA will host a media teleconference on Wednesday, April 11 at 2 p.m. EDT to discuss science objectives of the Aeronomy of Ice in the Mesosphere (AIM) mission. AIM is scheduled to launch April 25 from Vandenberg Air Force Base, Calif., aboard a Pegasus launch vehicle. It will measure high altitude noctilucent ("night shining") clouds to determine why they form and vary, which may be linked to climate change. Briefing participants are: -- Vicki Elsbernd, AIM Program Executive, NASA Headquarters, Washington -- Jim Russell, AIM Principal Investigator, Hampton University, Hampton, Va. -- Chris Savinell, AIM mission manager, Goddard Space Flight Center, Greenbelt, Md. Reporters should call 1-888-398-6118 and use the pass code "clouds" to participate in the teleconference. International media should call 1-210-234-0007. Audio of the teleconference will stream live at: http://www.nasa.gov/newsaudio Supporting images will be posted concurrent with the briefing at: http://www.nasa.gov/mission_pages/aim/AIM_L14_media.html For more information about the AIM mission, visit: http://www.nasa.gov/aim -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