We don't know if there are other universes beyond our own, or other dimensions of reality. Cosmos is therefore meant to refer to "everything in existence, including whatever may exist outside of our own local presentation of the universe." Answer from I_am_the_Primereal on reddit.com
Reddit
reddit.com › r/englishlearning › what's the difference between universe and cosmos ?
r/EnglishLearning on Reddit: what's the difference between universe and cosmos ?
August 15, 2021 -
I know where do we use and how to use the word 'universe'.....but how does the word 'cosmos' differ from the word 'universe'? Have they both same meaning?
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We don't know if there are other universes beyond our own, or other dimensions of reality. Cosmos is therefore meant to refer to "everything in existence, including whatever may exist outside of our own local presentation of the universe."
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They are synonyms. I have heard people say that "cosmos" kind of implies the idea of the universe as an organized system more (not so much a random whatever-is-out-there idea).
Physics Forums
physicsforums.com › astronomy and cosmology › astronomy and astrophysics
Cosmos vs Universe: What's the Difference? • Physics Forums
June 13, 2004 - The discussion clarifies the distinction between "cosmos" and "universe," with the cosmos encompassing everything that exists, while the universe is viewed as a subset containing observable matter and phenomena.
Videos
49:28
Exploring the Universe Through Science | What Is Astronomy? - YouTube
53:56
Decoding the Universe: Cosmos | Full Documentary | NOVA | PBS - ...
07:53
How Big Is Our Universe? | Your Cosmos | BBC Studios - YouTube
11:10
How Big is The Universe? - YouTube
08:11
How Big Is the Universe? | Your Cosmos | Earth Science - YouTube
53:02
The Universe in a Box: Simulating the Cosmos with Supercomputers ...
We don't know if there are other universes beyond our own, or other dimensions of reality. Cosmos is therefore meant to refer to "everything in existence, including whatever may exist outside of our own local presentation of the universe." Answer from I_am_the_Primereal on reddit.com
synonyms - What's the difference between the universe and the cosmos? - English Language & Usage Stack Exchange
Is there a difference between the universe and the cosmos? I used to think that the cosmos was a sort of container for the universe, one that could contain potentially infinite universes. More on english.stackexchange.com
meaning - What is the difference between "cosmos", "world", "universe"? - English Language & Usage Stack Exchange
Are these words different in meaning: cosmos, world, universe? Does world mean just the Earth and not other planets? More on english.stackexchange.com
what's the difference between universe and cosmos ?
We don't know if there are other universes beyond our own, or other dimensions of reality. Cosmos is therefore meant to refer to "everything in existence, including whatever may exist outside of our own local presentation of the universe." More on reddit.com
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August 15, 2021Space vs Cosmos: what's the difference? If I had a category on my news site dedicated to astronomy, would I have named it "Space" or "Cosmos"?
Cosmos is a more poetic, philosophical term. You’ll hear it in speeches by people like Carl Sagan or Stephen Hawking. Space is more general. More on reddit.com
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March 5, 2023Wikipedia
en.wikipedia.org › wiki › Cosmos
Cosmos - Wikipedia
September 25, 2025 - The cosmos (/ˈkɒzmɒs/, US also /-moʊs, -məs/; Ancient Greek: κόσμος, romanized: kósmos) is an alternative name for the universe or its nature or order. Usage of the word cosmos implies viewing the universe as a complex and orderly system or entity.
Quora
quora.com › What-is-the-difference-between-the-cosmos-and-the-universe
What is the difference between the cosmos and the universe? - Quora
Answer (1 of 21): Cosmos is a (harmonious) entity of Universe, its opposite entity is Chaos. They both - no matter how large - are just a spec of what Universe is and is filled out from.
Medium
medium.com › starts-with-a-bang › coloring-the-universe-vs-the-hubble-cosmos-39cfdeeda300
Coloring The Universe Vs. The Hubble Cosmos | by Ethan Siegel | Starts With A Bang! | Medium
December 20, 2015 - Coloring The Universe Vs. The Hubble Cosmos Both are beautiful gifts, but only one is a beautiful learning experience. “The time will come when diligent research over long periods will bring to …
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In technical (astrophysics) usage no.
There are a number of different uses of universe but cosmos isn't used as a specific technical term. Cosmos is sometimes used in popular works as a homage to Carl Sagan's famous TV series.
Cosmological is used as a technical term, eg. Cosmological constant, Cosmological redshift - because using "Universal" would be confusing.
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Universe means "the whole world" or "all taken collectively".
While Cosmos comes from the Greek Kosmos (from the OED: κόσµος - order, ornament, world or universe (so called by Pythagoras or his disciples ‘from its perfect order and arrangement’).
Cosmos is the opposite of Chaos, which was the first state of the universe.
Nowadays they are used like synonyms; they refer to the same thing, but seen from different "point of views".
Quora
mysteriousuniverse.quora.com › Why-is-the-universe-also-called-cosmos
Why is the universe also called cosmos? - Mysterious Universe - Quora
Answer: Universe means "the whole world" or "all taken collectively". While Cosmos comes from the Greek Kosmos (from the OED: κόσµος - order, ornament, world or universe (so-called by Pythagoras or his disciples ‘from its perfect order ...
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Cosmos, world, universe.
The universe is ... well the universe within which everything exists.
The cosmos could be considered a more poetic form of synonym for universe: the Greek etymology distinguishes it as a "well-ordered" version of the universe. It's what you see when you look at the universe with starry-eyes.
A world gives more of an enclosed sense: a somewhat enclosed plane/sphere of existence. It does not encompass everything like the universe does. In a cosmic sense, it often refers to a planet or a planetoid or occasionally a moon. Though one could describe a lifeless planet as a world, for me, world also has a slight connotation leaning towards the presence of life.
Does "world" mean just the earth and not other planets?
"World" can refer to other planets: "other worlds".
"World" also does not need to refer to a planet: "the world of competitive ploughing".
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By Wikipedia-:
World is a common name for the whole of human civilization, specifically human experience, history, or the human condition in general, worldwide, i.e. anywhere on Earth or pertaining to anywhere on earth.
Universe is the totality of our existence.
Cosmos is the Universe regarded as a beautifully-arranged system.
By me-:
Earth is the world of human beings , have you ever heard of the phrase " living in your own world " or something like "for these slum children,this wilderness is their world".(answering comment).
Universe is the aggregate of all aggregates.
Cosmos ....
Scientific American
scientificamerican.com › article › is-consciousness-part-of-the-fabric-of-the-universe1
Is Consciousness Part of the Fabric of the Universe? | Scientific American
August 27, 2025 - He said in a 2014 TED Talk that a photon “might have some element of raw, subjective feeling, some primitive precursor to consciousness.” Also onboard with the idea is neuroscientist Christof Koch, who noted in his 2012 book Consciousness that if one accepts consciousness as a real phenomenon that is not dependent on any particular material—that it’s “substrate-independent,” as philosophers put it—then “it is a simple step to conclude that the entire cosmos is suffused with sentience.”
NASA Science
science.nasa.gov › universe › overview
Overview - NASA Science
October 22, 2024 - After the cosmic microwave background, the universe again became opaque at shorter wavelengths due to the absorbing effects of all those hydrogen atoms. For the next 200 million years the universe remained dark. There were no stars to shine. The cosmos at this point consisted of a sea of hydrogen atoms, helium, and trace amounts of heavier elements.
Facebook
facebook.com › groups › 324897304599197 › posts › 1675523336203247
Is understanding the universe the same as ...
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BBC Sky at Night Magazine
skyatnightmagazine.com › space-science › how-big-universe
How big is the Universe? This is what astronomers think the size of the cosmos is, and how they worked it out | BBC Sky at Night Magazine
August 29, 2025 - So, can we say anything about the size of the Universe beyond the ‘observable’? Not much. One idea is that if the cosmos expanded at the speed of light during its earliest inflation phase, then it should be 100 sextillion (1023) times bigger than the observable Universe.
Merriam-Webster
merriam-webster.com › dictionary › cosmos
COSMOS Definition & Meaning - Merriam-Webster
1 week ago - Cosmos often simply means "universe". But the word is generally used to suggest an orderly or harmonious universe, as it was originally used by Pythagoras in the 6th century B.C. Thus, a religious mystic may help put us in touch with the cosmos, ...
Study.com
study.com › science courses › astronomy 101: intro to astronomy
Galaxy, Universe & Solar System | Overview & Differences - Lesson | Study.com
November 21, 2014 - The Universe is all of space, matter, energy, time, and its contents, including planets, stars, galaxies, and all other forms of matter and energy. It is the totality of all that exists, the entire cosmos.
COSMOS
astronomy.swin.edu.au › cosmos › u › Universe
Universe | COSMOS
The term Universe refers to everything within the Cosmos – planets, stars, galaxies, light and even the vacuum between these entities.
Difference Between
differencebetween.com › difference-between-cosmos-and-vs-universe
Difference Between Cosmos and Universe | Compare the Difference Between Similar Terms
January 31, 2012 - In this sense, the universe is sometimes a relative to the subject being discussed. In modern science, the universe is considered to be infinite, but the observable universe is finite. ... Cosmos is a phrase that is used to identify the universe.
Encyclopedia Britannica
britannica.com › science › astronomy
Cosmos | Stars, Galaxies, Nebulae | Britannica
October 11, 2025 - Cosmos, in astronomy, the entire physical universe considered as a unified whole (from the Greek kosmos, meaning “order,” “harmony,” and “the world”). Humanity’s growing understanding of all the objects and phenomena within the ...
X
x.com › ExploreCosmos_ › status › 1992623900677587055
Erika on X: "Is the universe infinite or simply vast beyond imagination? Let's begin with the central distinction that shapes the entire debate, the difference between the observable universe and the universe as a whole. What we can see is limited by the cosmic light horizon, a boundary https://t.co/ZkRIbOsqc2" / X
Let's begin with the central distinction that shapes the entire debate, the difference between the observable universe and the universe as a whole. What we can see is limited by the cosmic light horizon, a boundary defined not by any physical wall but by the finite age of the cosmos.
VEDANTU
vedantu.com › physics › cosmos astronomy: a guide to the universe
Cosmos Astronomy: Explore the Universe & Celestial Objects
We use the word cosmos and universe most of the time interchangeably. But there are differences. "Cosmos" in astronomy is the harmonious and orderly whole, a system that is governed not by human or supernatural laws but by natural law. In astronomy, cosmos refers to objects that exist naturally, especially those visible in the sky.
Wikipedia
en.wikipedia.org › wiki › Observable_universe
Observable universe - Wikipedia
4 days ago - The comoving distance to the edge of the observable universe is about 14.3 billion parsecs (about 46.6 billion light-years), about 2% larger. The radius of the observable universe is therefore estimated to be about 46.5 billion light-years. Using the critical density and the diameter of the observable universe, the total mass of ordinary matter in the universe can be calculated to be about 1.5×1053 kg.