The briefing participants will be:
-- John Callas, project manager for Opportunity, NASA's Jet Propulsion Laboratory, Pasadena, Calif.
-- Steve Squyres, principal investigator for Opportunity, Cornell University, Ithaca, N.Y.
-- Ray Arvidson, deputy principal investigator for Opportunity, Washington University, St. Louis, Mo.
Audio and visuals of the event will be streamed live online at: http://www.nasa.gov/newsaudio and http://www.ustream.tv/nasajpl2 .
Visuals will be posted at the start of the event at: http://www.nasa.gov/mission_pages/mer/telecon/20130607.html .
For information about NASA's Mars Exploration Rover Project and the twin rovers Spirit and Opportunity, visit: http://www.nasa.gov/rovers and http://marsrovers.jpl.nasa.gov .