Professor Jay Strader Professor Jay Strader describes: A globular cluster can contain a million stars but those stars are very old. Some of these stars have already become white dwarfs, with the mass of a sun compacted into the size of the Earth. Others have become neutron stars, with a mass of more than the sun packed into the size of a city. But do globular clusters contain the ultimate compact mass -- black holes? New observations say that some of them do. Globular clusters and the search for their elusive black holes are the topic of this talk.

Location:	Abrams Planetarium [map]
Price:	Adults $3.00, students and senior citizens $2.50, children 12 years and under $2.00
Sponsor:	Physics Astronomy Department
Contact:	Mary Gowans gowans@msu.edu 517-355-4676
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