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View Resource Cosmology

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...

View Resource The New Cosmology

This site offers new information pertaining to the Big Bang Theory. The new idea that they are proposing is that inflation took place at less than a tiny fraction of a second during which space underwent an enormous expansion. During the past 13 billion years, space has been expanding but at increasing rates, that is, the Universe is accelerating. Most of this expansion is driven not by the mass...

View Resource The Star Splitters: The High Energy Astronomy Observatories

This online textbook teaches the user about how a science project is conceived, funded, and managed. They do this by telling a story about how NASA's High Energy Astronomy Observatory (HEAO) Program executed a science project. By the end of this text the user learns more about our universe, galaxies, planets, and dark matter.

View Resource The Nature of Dark Matter

This slide set begins by discussing the amount of dark matter on galactic and larger scales by refering to the dark matter in the Milky Way. The next set of slides reviews the motivation for and the basic physics of several dark matter candidates: Machos, Wimps, axions, and neutrinos. Then it disscusses two candidates in particular, the neutralino from supersymmetry and the baryonic Macho...

View Resource Dark Matter

This site, created by author Chris Miller, is an article that discusses, in depth, what dark matter is. The material is taken from current literature that looks at how scientists have determined the mass discrepancy, what they think dark matter is and how they are looking for it, and how dark matter fits into current theories about the origin and fate of the universe. The author provides an...

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