Dolores Beasley

Headquarters, Washington, DC

(Phone: 202/358-1753)

Steve Roy

Marshall Space Flight Center, Huntsville, AL

(Phone: 256/544-6535)

Dr. Wallace Tucker

Harvard-Smithsonian Center for Astrophysics, Cambridge, MA

(Phone: 617/496-7998)


Until now, scientists have observed only two types of black
holes — some about the mass of stars and some with a mass a
million to a billion times the mass of a star. At 1 p.m. EDT
Sept. 12 in the James E. Webb Auditorium at NASA Headquarters,
300 E St., SW, Washington, DC, a Space Science Update panel will
present evidence for a new type of black hole. The recent
evidence comes from NASA’s Chandra X-ray Observatory.

The Space Science Update panelists will be:

– Dr. Donald A. Kniffen, Chandra X-ray Observatory Deputy
Program Scientist, NASA Headquarters

– Dr. Martin Ward, Professor of Astronomy and Director of the
X-ray Astronomy Group, University of Leicester, UK

– Dr. Andrea Preswich, Astrophysicist, Harvard-Smithsonian
Center for Astrophysics, Cambridge, MA

– Dr. Philip Kaaret, Astrophysicist, Harvard-Smithsonian Center
for Astrophysics

– Dr. Douglas Richstone, Professor and Chair of Astronomy,
University of Michigan, Ann Arbor

The Space Science Update will be carried live on NASA Television
with two-way question-and-answer capability for reporters
covering the briefing from participating NASA centers. NASA
Television is broadcast on satellite GE-2, transponder 9C, at 85
degrees West longitude, vertical polarization, frequency 3880
MHz, audio of 6.8 MHz. The briefing also will be Webcast live
via links at: