9th Annual Kaczmarczik Lecture

Thursday, November 12th, 2003 - 3:30 PM

Main Auditorium, Main Building
3141 Chestnut Street
Philadelphia, PA 19104

Taking the Universe's Baby Picture

David Spergel

Princeton University

2003 Kaczmarczik poster

By observing tiny fluctuations in the microwave background, the leftover heat from the big bang, cosmologists can address many of the most important questions in cosmology: How old is the universe? What is the shape and size of the visible universe? Is most of the universe composed of atoms? When did the first stars form? What happened during the first moments of the big bang? David Spergel will describe recent observations by NASA's Wilkinson Microwave Anisotropy Probe and show how these observations help answer these questions.