For the first time in history, man has a detailed accounting of what makes up the universe. Yet, 95% of the universe defies detection. Dr. Asztalos will explain how scientists have come to this understanding of the universe and what they think makes up ~25% of its mass.

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Speaker Bios

Dr. Stephen Asztalos

Dr. Stephen J. Asztalos is engaged in experimental cosmology at Lawrence Livermore National Laboratory (LLNL). He received his B.S. and M.S. degrees in Nuclear Engineering from the University of Wisconsin - Madison. He spent a half-dozen or so years in the nuclear power industry before enrolling in the Ph.D. program in Nuclear Engineering at the University of California Berkeley. After graduating in 1998 he took a postdoctoral position with the Massachusetts Institute of Technology working on the axion dark matter search experiment at LLNL. He continues to work on this unique and difficult experiment. His other research interests include using gravitational lensing and supernovae explosions to weigh the universe. When not catching up on sleep Dr. Asztalos likes to hike to remote spots to hunt for wildflowers or ski slopes with lots of black diamonds.

Tom Shefler

Granada High School

Mr. Shefler received a Bachelor of Science degree in physics and applied mathematics from Western Michigan University in 1997 and a Master of Arts degree in astronomy and astrophysics from the University of California at Berkeley in 2000. While at Berkeley, he researched analyzed and cataloged Hubble Space Telescope images of galaxies, observational research involved in the detection and study of extrasolar planets, and discovered Supernova 1998DT while working with the Katzman Automatic Imaging Telescope team. During his graduate studies he fell in love with teaching and entered the teaching profession in 2002.