WASHINGTON – NASA is scheduled to host a briefing at 1 p.m. EST, on Thursday, Jan. 21, to discuss the upcoming launch and science of an unprecedented mission to study the sun and its dynamic behavior. The briefing on NASA’s Solar Dynamics Observatory, or SDO, mission will take place in the NASA Headquarters auditorium, located at 300 E St. S.W. in Washington and at the press site at NASA’s Kennedy Space Center in Florida.

The briefing participants are:

– Richard Fisher, Heliophysics division director, NASA Headquarters in Washington

– Madhulika Guhathakurta, SDO program scientist, NASA Headquarters

– Dean Pesnell, SDO project scientist, NASA’s Goddard Space Flight Center in Greenbelt, Md.

– Elizabeth Citrin, SDO project manager, Goddard

The briefing will be broadcast live on NASA Television and the agency’s Web site. To watch the briefing on the Web, visit: http://www.nasa.gov/ntv

Reporters unable to attend the briefing may ask questions by telephone. To reserve a telephone line, journalists should e-mail their name, media affiliation and telephone number to J.D. Harrington at: j.d.harrington@nasa.gov

NOTE: Due to launch processing schedules, this briefing may move to 2 p.m. EST, Friday, Jan. 22. Media representatives should contact Harrington at 202-358-5241 Thursday morning for an update.

For more information about the SDO mission, visit: http://www.nasa.gov/sdo