4 p.m. EST, Wednesday, Dec. 17

Constellation Program Update

NASA will host a media teleconference to brief reporters about recent developments and ongoing progress in NASA's Constellation Program.

The briefing participants are:

-- Doug Cooke, deputy associate administrator of the Exploration Systems Mission Directorate at NASA Headquarters in Washington
-- Jeff Hanley, Constellation program manager at NASA's Johnson Space Center in Houston
-- Steve Cook, Ares projects manager at NASA's Marshall Space Flight Center in Huntsville, Ala.
-- Mark Geyer, Orion project manager at NASA's Johnson Space Center

To participate in the call, reporters should dial 800-790-1836 and use the pass code "ESMD update." Replays of the call will be available through Dec. 24 by dialing 866-507-3617 and entering the pass code 52368.

Teleconference audio will be broadcast live at:

http://www.nasa.gov/newsaudio

For more information about NASA's Constellation Program, visit:

http://www.nasa.gov/constellation