- Universe - Wikipedia
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? - Science@NASA
The 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
- What is the universe? - Live Science
It's quite a big question and a lot is still unknown about the universe, but we'll tell you everything that we do know, from how the universe was created, how old it is and what it's even made
- Universe | Definition Facts | Britannica
Universe, the whole cosmic system of matter and energy of which Earth is a part
- StarChild: The Universe - NASA
The universe is a vast expanse of space which contains all of the matter and energy in existence The universe contains all of the galaxies, stars, and planets The exact size of the universe is unknown Scientists believe the universe is still expanding outward
- WMAP- Universe Overview
So far, we have only described the Big Bang model in general terms: on the largest scales we can observe, the universe appears nearly uniform, it is currently expanding, and there is strong evidence that it was hotter and denser in the past
- Universe - Wikiwand
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? - AMNH
The universe is all the matter, energy, and space that exist We can observe only a part of it - the observable universe The entire, universe, including the part we cannot see, may be infinite Matter is the physical substance of things--of stars, planets, people, and atoms
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