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1. • • Space is an almost perfect vacuum, nearly void of matter and with extremely low pressure. In space, sound doesn't carry because there aren't molecules close enough together to transmit sound between them.
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     What Is Space? - A Definition of Our Universe and Beyond | Space

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   What is space in physics?

   • In classical physics, physical space is often conceived in three linear dimensions. Modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime. [ 2 ] The concept of space is considered to be of fundamental importance to an understanding of the physical universe.

   Space - Wikipedia

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   What is space in astronomy?

   • For a description of space as the region of the universe beyond the Earth and its atmosphere, see Cosmos. For coverage of the scientific investigation of this region, see space exploration. See also astronomy. How Do You Tell the Difference Between Total, Annular, Solar, and Lunar Eclipses?

   Space | Cosmology, Astronomy, Quantum Mechanics | Britannica

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   What is a space in mathematics?

   • In modern mathematics spaces are defined as sets with some added structure. They are typically topological spaces, in which a concept of neighbourhood is defined, frequently by means of a distance (metric spaces).

   Space - Wikipedia

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   What is space?

   • WilczekWhatis space: An empty stage, where the physical world of matter acts out its drama; an equal participant, that both provides background and has a life of its own; or the primary reality, of which matter is a secondary anifestation? Views on this question have evolved, and several times changed radically, over the histo

   What is Space - MIT Physics

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   Is space a component of time?

   • Space, in the best theory of physics on this topic we have today – Einstein’s theory of general relativity (GR) – is a component of space-time, which can be described very well using the math in GR, but which is difficult to envision with our naïve intuitions.

   What is Space? - Universe Today

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   What is quantum physics?

   • some answers.Modern quantum physics brings in ideas of a di ferent order. Quantum reality lives in spaces whose meaning, size, and structure transcends classical ideas about p ysical space. To get in tune with Nature, we must vastly expand our concep ual universe.With new answers come ew questions. The structure of space is encoded in the

   What is Space - MIT Physics

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3. www.space.com › 24870-what-is-spaceWhat Is Space? - A Definition of Our Universe and Beyond | Space

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   Feb 17, 2022 · Galaxies and quasars. We often refer to our expanding universe with one simple word: space. But where does space begin and, more importantly, what is it? Space is an almost perfect vacuum,...

4. www.bbc.co.uk › bitesize › topicsSpace physics - GCSE Physics (Single Science) - BBC Bitesize

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   Theories about the development of the Universe, such as the Big Bang theory, are based on astronomical observations and ideas such as red-shift and dark energy. Sample exam questions - space ...

5. en.wikipedia.org › wiki › SpaceSpace - Wikipedia

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   Space is a three-dimensional continuum containing positions and directions. [1] In classical physics, physical space is often conceived in three linear dimensions. Modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime. [2]

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7. physics.mit.edu › wp-content › uploadsWhat is Space - MIT Physics

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   Besides the fluctuating activity of quantum fields, space is filled with several layers of more permanent, substantial stuff. These are plenums, or ethers, in something closer to the original spirit of Aristotle and Descartes—they are materials that fill space. In some cases, we can identify what they’re made of and even produce little

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8. www.britannica.com › science › space-physics-andSpace | Cosmology, Astronomy, Quantum Mechanics | Britannica

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   Space, a boundless, three-dimensional extent in which objects and events occur and have relative position and direction. Space is treated in a number of articles. For a philosophical consideration of the subject, see metaphysics. For a discussion of the relativity of space and time, see relativity.

   • Author: The Editors of Encyclopaedia Britannica

9. www.universetoday.com › 57734What is Space? - Universe Today

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   Feb 26, 2010 · First, some simple answers: space is everything in the universe beyond the top of the Earth’s atmosphere – the Moon, where the GPS satellites orbit, Mars, other stars, the Milky Way,...

10. www.bbc.co.uk › bitesize › topicsSpace - KS3 Physics - BBC Bitesize

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    Space. The solar system is made up of the Sun and the objects that orbit around it, including planets, asteroids and comets. The Sun’s gravity holds all of these objects together. The...