NASA has set no earlier than June 11 as the new target launch date for the Gamma-ray Large Area Space Telescope, or GLAST, from Cape Canaveral Air Force Station in Florida. The launch window extends from 11:45 a.m. to 1:40 p.m. EDT.

NASA initially had targeted June 7 for the GLAST launch aboard a Delta II rocket. Additional time was needed to replace the rocket's flight termination system battery, which indicated a problem Wednesday.

The GLAST prelaunch news conference is planned for 1 p.m. on Monday, June 9, at NASA's News Center at the Kennedy Space Center. Question and answer capability will be available from participating NASA locations.