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written by Nick Strobel
Astronomy notes is an educational resource for introductory astronomy classes for undergraduates. This section discusses the Hubble constant, Olbers' Paradox, Hubble's Law, the cosmological principle and the perfect cosmological principle.  In the next section evidence for the Big Bang are presented such as the abundance of helium and hydrogen, the Cosmic Microwave Background, and the expansion of the universe.  The next section discusses the shape of the universe as either being flat, open, or closed, and why inflation, the cosmological constant, and dark matter play an important determining role.
Subjects Levels Resource Types
- Cosmology
- Lower Undergraduate
- Instructional Material
= Lecture/Presentation
- Reference Material
Intended Users Formats Ratings
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Big Bang, Big Crunch, CMB, Cosmic Microwave Background, Hubble constant, Hubble's Law, Olber's Paradox, black holes, closed, cosmological principle, dark energy, dark mater, elements, expansion, flat, gravity, helium, hydrogen, inflation, open, orgin, radiation, shape of universe
Record Creator:
Metadata instance created December 11, 2003 by Patricia Monahan
Record Updated:
June 19, 2007 by Chris Irwin
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Record Link
AIP Format
N. Strobel, , WWW Document, (
N. Strobel, Cosmology, <>.
APA Format
Strobel, N. (n.d.). Cosmology. Retrieved March 20, 2023, from
Chicago Format
Strobel, Nick. Cosmology. (accessed 20 March 2023).
MLA Format
Strobel, Nick. Cosmology. 20 Mar. 2023 <>.
BibTeX Export Format
@misc{ Author = "Nick Strobel", Title = {Cosmology}, Volume = {2023}, Number = {20 March 2023}, Year = {} }
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%A Nick Strobel %T Cosmology %U %O text/html

EndNote Export Format

%0 Electronic Source %A Strobel, Nick %T Cosmology %V 2023 %N 20 March 2023 %9 text/html %U

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