Universe - Wikipedia
WEBThe universe is all of space and time [ a ] and their contents. [ 10 ] It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of matter and energy, and the structures they form, from sub-atomic particles to entire galactic filaments.
What is the Universe? - NASA Science
WEBThe universe is everything. It includes all of space, and all the matter and energy that space contains. It even includes time itself and, of course, it includes you.
Universe | Definition & Facts | Britannica
WEBSep 13, 2024 · universe, the whole cosmic system of matter and energy of which Earth, and therefore the human race, is a part. Humanity has traveled a long road since societies imagined Earth, the Sun, and the Moon as the main objects of creation, with the rest of the universe being formed almost as an afterthought.
What is the universe? - Live Science
WEBMay 3, 2022 · The universe is literally everything, the sum of all existence. It includes all matter, like stars and galaxies. The universe also includes all radiation and all other forms of...
Universe - NASA Science
WEBWelcome to the Universe. Discover the universe: Learn about the history of the cosmos, what it's made of, and so much more. Explore: Exoplanets. Stars. Black Holes. Galaxies. …
Universe Facts - Space Facts
WEBThe universe is the sum total of all the planetary systems, stars, nebulae, galaxies, galactic clusters, black holes, and the atoms and molecules that make all these objects. It also contains all the energy we know about, along with dark matter, which has not been directly observed.
Overview - NASA Science
WEBThe origin, evolution, and nature of the universe have fascinated and confounded humankind for centuries. New ideas and major discoveries made during the 20th century transformed cosmology – the term for the way we conceptualize and study the universe – although much remains unknown.
The Universe | Facts, Information, History & Definition
WEBAug 19, 2020 · The universe is made up of 4.9% ordinary (baryonic) matter, 26.8% dark matter, and 68.3% dark energy. Considering only the largest structures, the universe is made up of filaments, voids, superclusters, and galaxy groups, and clusters. Dark matter and dark energy are invisible theoretical matter.
The Universe | NASA+
WEBSep 13, 2024 · Discover how the universe works, explore how it began and evolved, and search for life on planets around other stars as we seek to understand the universe and
The origins of the universe facts and information - National …
WEBAug 16, 2024 · How did the universe begin—and what were its early days like? The most popular theory of our universe's origin centers on a cosmic cataclysm unmatched in all of history—the big bang.
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