General Relativity and Gravitation

, Volume 15, Issue 2, pp 181–185

How big is the universe today?


  • Don N. Page
    • Department of PhysicsThe Pennsylvania State University
Research Articles

DOI: 10.1007/BF00762476

Cite this article as:
Page, D.N. Gen Relat Gravit (1983) 15: 181. doi:10.1007/BF00762476


If one defines the size of the present universe in terms of a hypersurface of simultaneity generated by the spatial geodesies orthogonal to our world line today, then it is finite in all expanding Big Bang Friedmann models.

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© Plenum Publishing Corporation 1983