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Sunday, 27 November 2011

Yale: Frontiers and Controversies in Astrophysics, Lecture 19

ASTR 160 - Frontiers and Controversies in Astrophysics
Professor Charles Bailyn
Spring 2007
Source: Yale University, Open Yale Courses

Omega and the End of the Universe

Omega is the actual density of the universe divided by its critical density:  if it is greater than 1, there will be a big crunch; if it is lesse than 1, the universe will expand forever.  Evaluating omega is not easy, partly because of dark matter (WIMPs:Weakly Interactive Massive Particles, and MACHOs:  Massive Astrophysical Compact Halo Objects).

Other lectures from this course

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