Artist Rendering of the Genesis Spacecraft

The launch of NASA's Genesis spacecraft aboard a Delta II rocket has been postponed at least 24 hours.

The spacecraft contains a power supply component in the star tracker unit which is similar to a component that recently failed during a simulated space environment test not related to the Genesis mission. NASA and the Genesis project decided late this afternoon that additional time was needed to further evaluate the available data to assure that there will be no effect on the Genesis mission.

Pending review of the data, the launch of the Genesis spacecraft has been rescheduled for no earlier than Tuesday, July 31, with the two-minute launch window at 12:32:34 p.m. EDT. If the launch proceeds for Tuesday, Genesis launch coverage on NASA Television will begin at 11 a.m. EDT.