WALLOPS ISLAND, VA – NASA’s Wallops Flight Facility in Virginia has rescheduled the launch of two NASA sounding rockets carrying experiments to study the ionosphere to no earlier than July 9 so that Wallops range assets can support the final launch of the Space Shuttle.

The launches have been postponed three times since July 5 because of unacceptable weather.

The launch window is 9:30 a.m. to 1 p.m. The backup launch days run through July 23.

The rockets may be visible in the Wallops area.

The launch will be web cast beginning at 8:30 a.m. on launch day at:
http://sites.wff.nasa.gov/webcast

Launch status can be followed on Twitter at:
http://www.Twitter.com/NASA_Wallops

Launch status also is available at the Wallops launch status line at 757-824-2050.

Further information on the mission is available on the Internet at: http://www.nasa.gov/mission_pages/sunearth/news/rockets-atmosphere.html