cosmology
noun
cos·mol·o·gy
käz-ˈmä-lə-jē 
plural cosmologies
1
a
: a branch of metaphysics that deals with the nature of the universe
b
: a theory or doctrine describing the natural order of the universe
2
: a branch of astronomy that deals with the origin, structure, and space-time relationships of the universe
also
: a theory dealing with these matters
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Cosmology and Star Trek
Most religions and cultures include some kind of cosmology to explain the nature of the universe. In modern astronomy, the leading cosmology is still the Big Bang theory, which claims that the universe began with a huge explosion that sent matter and energy spreading out in all directions. One reason why fans watch Star Trek is for the various cosmologies depicted in the show, including different conceptions of space, time, and the meaning of life.
Examples of cosmology in a Sentence
Recent Examples on the Web
This hints that our best theory of the universe's evolution, the standard model of cosmology, could be wrong.
—
Robert Lea, Space.com, 20 Mar. 2025
But cosmology has come a long way in recent decades.
—Charlie Wood, Quanta Magazine, 19 Mar. 2025
This new sky map has put the standard model of cosmology through a rigorous new set of tests and show it to be remarkably robust.
—Monica Cull, Discover Magazine, 18 Mar. 2025
Her painting-sculptures draw on many traditions of wisdom and spirituality, such as Sufism, as well as science, cosmology and nature.
—Y-Jean Mun-Delsalle, Forbes, 1 Jan. 2025
See All Example Sentences for cosmology
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Robert Lea, Space.com, 20 Mar. 2025
But cosmology has come a long way in recent decades.
—Charlie Wood, Quanta Magazine, 19 Mar. 2025
This new sky map has put the standard model of cosmology through a rigorous new set of tests and show it to be remarkably robust.
—Monica Cull, Discover Magazine, 18 Mar. 2025
Her painting-sculptures draw on many traditions of wisdom and spirituality, such as Sufism, as well as science, cosmology and nature.
—Y-Jean Mun-Delsalle, Forbes, 1 Jan. 2025
See All Example Sentences for cosmology
Cite this Entry
“Cosmology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmology. Accessed 29 Mar. 2025.
Copy CitationKids Definition
cosmology
noun
cos·mol·o·gy
käz-ˈmäl-ə-jē
plural cosmologies
: a branch of astronomy that deals with the beginning, structure, and space-time relationships of the universe
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