New X-ray data from two orbiting satellites, providing the
best evidence to date for a spectacular black hole event long
predicted by theory but not confirmed until now, will be the
subject of the next NASA Space Science Update (SSU).

The SSU starts at 1 p.m. EST on Wednesday, February 18, 2004,
in the James E. Webb Auditorium, NASA Headquarters, 300 E St.,
S.W., Washington.

Science team leaders will present their findings for this
discovery, which could provide crucial information about how
these black holes grow and affect surrounding stars and gas.
The SSU will be carried live on NASA TV with two-way question-
and-answer capability for reporters covering the event at
participating NASA centers.


— Dr. Stefanie Komossa, postdoctoral researcher, Max-Planck-
Institute for Extraterrestrial Physics, Garching, Germany.

— Dr. Guenther Hasinger, astrophysicist, Max-Planck-Institute
for Extraterrestrial Physics.

— Dr. Kim Weaver, astrophysicist, NASA Goddard Space Flight
Center, Greenbelt, Md.

— Dr. Alex Filippenko, professor, University of California,
Berkeley, Calif.

– Panel Moderator: Dr. Paul Hertz, Senior Scientist for
Astronomy and Physics, Office of Space Science, NASA
Headquarters, Washington.

NASA Television is available on AMC-9, transponder 9C, C-Band,
located at 85 degrees west longitude. The frequency is 3880.0
MHz. Polarization is vertical, and audio is monaural at 6.80
MHz. For information about NASA TV on the Internet, visit:

Audio of the broadcast is available on voice circuit from the
Kennedy Space Center, Fla. at: 321/867-1220/1240/1260. The
update will be webcast live on the Internet at: