Noted astronomer to deliver three lectures, Feb. 23-25
Posted February 18, 2005; 05:00 p.m.
World-renowned astronomer Alex
Filippenko will present three lectures on campus Feb. 23-25 as part of the
University's Public Lectures Series.
Filippenko, a professor of
astronomy at the University of California-Berkeley, and his collaborators have
been credited with several major contributions to the field, including the
discovery that the expansion rate of the universe -- driven by a form of
"dark energy" -- is accelerating with time.
All of his lectures will begin at 7:30 p.m. in McCosh 50. Their titles are:
• "Catastrophic Stellar Explosions: Celestial Fireworks!" on Wednesday, Feb. 23, which will describe how stars evolve and sometimes explode at the end of their lives as supernovae.
• "Enigmatic Gamma-Ray Bursts: Birth Cries of Black Holes" on Thursday, Feb. 24, which will center on nature's most powerful explosions since the Big Bang.
• "Einstein's Biggest Blunder? The Case for Cosmic 'Antigravity'" on Friday, Feb. 25, which will look at "dark energy" -- initially postulated by Einstein but later renounced as his "biggest blunder."
Filippenko's talks are designated as the J. Edward Farnum Lectures and will be available for online viewing a week afterward at Webmedia.