first half of the fairing is installed around the Phoenix spacecraft
On Launch Pad 17-A at Cape Canaveral Air Force Station in Florida, the first half of the fairing is installed around the Phoenix spacecraft. Image credit: NASA
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CAPE CANAVERAL, Fla. - Friday's launch of NASA's Phoenix Mars Lander aboard a United Launch Alliance Delta II rocket has been postponed 24 hours. The two available launch times on Saturday, Aug. 4, are 2:26:34 and 3:02:59 a.m. Pacific Time (5:26:34 a.m. and 6:02:59 a.m. Eastern Time).

Due to a forecast for severe weather around the Kennedy Space Center launch pad on Tuesday afternoon, fueling of the second stage will not be completed Tuesday afternoon. While this is expected to be done Wednesday morning, there is insufficient contingency time in the schedule to move forward with the planned Friday launch.

The pre-launch news conference has been rescheduled to Thursday, Aug. 2, at 11 a.m. Pacific Time (2 p.m. Eastern Time) at the NASA press site at Kennedy Space Center. All other planned events for the news media will occur at the same times 24 hours later. NASA TV and Web coverage for launch will begin at 12:30 a.m. Pacific Time (3:30 a.m. Eastern Time) on Saturday. For more information about NASA TV, streaming video, and downlink and schedule information, visit: .

The Phoenix mission is led by Peter Smith of the University of Arizona, Tucson, with project management at JPL and development partnership at Lockheed Martin Space Systems in Denver. International contributions are provided by the Canadian Space Agency; the University of Neuchatel, Switzerland; the University of Copenhagen, Denmark; the Max Planck Institute, Germany; and the Finnish Meteorological Institute. JPL is a division of the California Institute of Technology in Pasadena.

Additional information on Phoenix is available online at: or .

Information on NASA's Mars program is available online at: .

News Media Contact

Media contacts: Guy Webster 818-354-6278
Jet Propulsion Laboratory, Pasadena, Calif.

Katherine Trinidad 202-358-3895
NASA Headquarters, Washington

George Diller 321-867-2468
Kennedy Space Center, Fla.

Sara Hammond 520-419-8071
University of Arizona, Tucson