Sept. 28, 2011 Stephanie L. Schierholz Headquarters, Washington 202-358-4997 stephanie.schierholz@xxxxxxxx Veronica McGregor Jet Propulsion Laboratory, Pasadena, Calif. 818-354-9452 veronica.c.mcgregor@xxxxxxxxxxxx RELEASE: 11-327 150 OF NASA'S TWITTER FOLLOWERS WILL BE INVITED TO MARS ROVER LAUNCH WASHINGTON -- NASA will host a two-day launch Tweetup for 150 of its Twitter followers on Nov. 23 and 25 at the agency's Kennedy Space Center in Florida. The Tweetup is expected to culminate in the launch of the Mars Science Laboratory Curiosity rover aboard an Atlas V 541 from Cape Canaveral Air Force Station. The launch window opens at 10:21 a.m. EST on Nov. 25. The Tweetup will provide NASA's social media followers with the opportunity to tour Kennedy Space Center; speak with scientists and engineers; and, if all goes as scheduled, view the spacecraft launch. The event also will provide participants the opportunity to meet fellow tweeps and members of NASA's social media team. Curiosity's arrival at the Red Planet is anticipated in August 2012 at Gale crater. During the two-year prime mission, the rover will investigate whether a selected area of Mars offered environmental conditions favorable for microbial life and for preserving evidence about life if it existed. Mars Science Laboratory is the fourth space mission launching this year managed by NASA's Jet Propulsion Laboratory in Pasadena, Calif., making 2011 one of the busiest ever in planetary exploration. Aquarius launched June 10 to study ocean salinity; Juno launched Aug. 5 to study the origins and interior of Jupiter; and the twin GRAIL orbiters departed for the moon on Sept. 10. Tweetup registration opens at noon on Wed, Oct. 5, and closes at noon on Fri., Oct. 7. NASA will randomly select 150 participants from online registrations. For more information and rules about the Tweetup and registration, visit: http://www.nasa.gov/tweetup For information about connecting and collaborating with NASA, visit: http://www.nasa.gov/connect For information about the mission, visit: http://www.nasa.gov/msl and http://mars.jpl.nasa.gov/msl/ -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