Boeing and NASA officials have scrubbed today’s
launch attempt of NASA’s Mars Exploration Rover-B “Opportunity” spacecraft
aboard a Boeing [NYSE: BA] Delta II rocket from Cape Canaveral Air Force
Station, Fla.

The cause of the scrub was shifting winds aloft in the Cape area that
affected the second launch window of 12:37:59 a.m. EDT today.

The first launch window of 11:56:16 p.m. EDT on June 28 was not utilized due
to a combination of toxic wind concerns and mariner activity in the launch
hazard area.

The next launch attempt will be today at 11:46:14 p.m. EDT. A second launch
opportunity exists at 12:28:07 a.m. on Monday, June 30, if necessary.

A unit of The Boeing Company, Integrated Defense Systems is one of the world
‘s largest space and defense businesses. Headquartered in St. Louis, Boeing
Integrated Defense Systems is a $25 billion business. It provides systems
solutions to its global military, government, and commercial customers. It
is a leading provider of intelligence, surveillance, and reconnaissance; the
world’s largest military aircraft manufacturer; the world’s largest
satellite manufacturer and a leading provider of space-based communications;
the primary systems integrator for U.S. missile defense; NASA’s largest
contractor; and a global leader in launch services.