Astronomers will present new findings about how planets
are built during a listen-and-log-on news briefing Monday at
1 p.m. EDT. The discoveries were made using NASA’s Spitzer
Space Telescope.

Reporters should call the Media Relations Office at NASA’s
Jet Propulsion Laboratory (JPL), Pasadena, Calif., at:
818/354-0344 for participation information.

Images and graphics supporting the briefing will be posted on
the Web at the start of the briefing at:

http://www.spitzer.caltech.edu/Media/041018telecon/

Briefing participants:

— Dr. Jonathan Gardner, Spitzer Space Telescope program
scientist, NASA Headquarters

— Dr. George Rieke, Spitzer Space Telescope scientist and
astronomy professor, University of Arizona, Tucson, Ariz.

— Dr. Scott Kenyon, senior scientist, Harvard-Smithsonian
Center for Astrophysics, Cambridge, Mass.

The Spitzer Space Telescope state-of-the-art infrared
detectors pierce the dense clouds of gas and dust that
enshroud many celestial objects, including distant galaxies;
clusters of newborn stars; and planet forming discs around
stars. JPL manages the Spitzer Space Telescope mission for
NASA’s Science Mission Directorate, Washington. Science
operations are conducted at the Spitzer Science Center at the
California Institute of Technology, Pasadena, Calif.