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Contact: Teresa S. Thomas

For immediate release:
March 6, 2002

Annual Buhl Lecture at Carnegie Mellon to Address Energy and Expansion of the Universe

PITTSBURGH—Saul Perlmutter, leader of the international Supernova Cosmology Project, will deliver Carnegie Mellon University's annual Buhl Lecture, "Supernovae, Dark Energy, and the Accelerating Universe," in which he questions if the universe will last forever, at 4:30 p.m., March 28, in the Mellon Institute Auditorium, 4400 Fifth Ave. in Oakland.

The Buhl Lecture, sponsored by the university's Physics Department, is free and open to the public.

Perlmutter, a senior scientist at the EO Lawrence Berkley National Laboratory whose measurements of the accelerating universe were Science Magazine's 1998 "Breakthrough of the Year," will use an empirical approach to answer the philosophical question about the continuity of the universe.

Perlmutter says light from distant exploding stars (supernovae) mark a path across space and time, which give clues about the universe's rate of expansion and its fate. Perlmutter will address theories that predict permanence of the universe and unending expansion, as well as the possibility of a mysterious dark energy that may pervade the universe. He will also discuss new cosmological tools, such as large telescopes and new detector systems that will be used.

Perlmutter has appeared in PBS and BBC documentaries about cosmology. He is the author of many papers about physics, astrophysics and cosmology in which he has addressed such topics as the cosmological constant, dark energy, supernovae, pulsars, gravitational lenses, massive compact halo objects and advanced detector systems for astrophysics.


Written by Kathleen Anne Fischer

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