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  1. Universe - Wikipedia

    The universe comprises all of existence: all forms of matter and energy, and the structures they form, from sub-atomic particles to entire galactic filaments. Since the early 20th century, the field of …

  2. Universe - NASA Science

    May 2, 2026 · Discover the universe: Learn about the history of the cosmos, what it's made of, and so much more.

  3. Universe Map

    Universe Map is your definitive guide to galaxies, stars, and cosmic structures — mapped, analyzed, and optimized for discovery and research.

  4. Universe | Definition & Facts | Britannica

    4 days ago · 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, …

  5. What is the Universe? Humanity’s Grandest Mystery

    Aug 31, 2025 · The universe is not just where we live—it is what we are. To understand the universe is to understand ourselves. To gaze into the night sky is to look into a mirror that reflects our deepest …

  6. ViewSpace

    ViewSpace gives you the opportunity to explore our planet, solar system, galaxy, and universe. Provided free with the support of NASA, ViewSpace is developed by a team of scientists, educators, and …

  7. UNIVERSE Definition & Meaning - Merriam-Webster

    5 days ago · The meaning of UNIVERSE is the whole body of things and phenomena observed or postulated : cosmos. How to use universe in a sentence.

  8. Universe Facts - Space Facts

    Universe Facts The 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 …

  9. What is the universe? - Live Science

    May 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 energy. No matter ...

  10. The Universe (article) - Khan Academy

    The universe is made up of matter and energy. Visible, or normal matter, makes up everything we can touch and see, including ourselves, dogs, trees, planets, and stars. In the last 20 years we’ve …