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  1. Clearwater Beach | Florida Vacation Destination - Britannica

    Nov 6, 2025 · Clearwater, city, seat (1912) of Pinellas county, west-central Florida, U.S. It lies on Clearwater Harbor (part of the Intracoastal Waterway), just west of Tampa via the Courtney …

  2. Cosmology | Definition & Facts | Britannica

    Nov 14, 2025 · Cosmology, the field of study that brings together the natural sciences, particularly astronomy and physics, in a joint effort to understand the physical universe as a unified whole.

  3. Clearwater, Florida - Students | Britannica Kids | Homework Help

    The city of Clearwater is the seat of Pinellas county in west-central Florida. Clearwater is situated on Pinellas Peninsula, east of Clearwater Harbor and the Gulf of Mexico…

  4. Astronomy - Cosmology, Universe, Stars | Britannica

    Sep 23, 2025 · Cosmology is the scientific study of the universe as a unified whole, from its earliest moments through its evolution to its ultimate fate. The currently accepted cosmological …

  5. Cosmology - Big Bang, Expansion, Dark Energy | Britannica

    Nov 14, 2025 · Cosmology - Big Bang, Expansion, Dark Energy: To derive his 1917 cosmological model, Einstein made three assumptions that lay outside the scope of his equations.

  6. Importance of cosmology and its three eras | Britannica

    cosmology, Field of study that brings together the natural sciences, especially astronomy and physics, in an effort to understand the physical universe as a unified whole.

  7. Astronomy | Definition, History, Discoveries, & Facts | Britannica

    Nov 14, 2025 · Concerned with phenomena on the largest scale is cosmology, the study of the evolution of the universe. Astrophysics has transformed cosmology from a purely speculative …

  8. universe - Students | Britannica Kids | Homework Help

    Cosmology is the branch of science that studies the universe as a whole. It brings together the natural sciences, particularly astronomy and physics, in a joint effort to understand such …

  9. Space | Cosmology, Astronomy, Quantum Mechanics | Britannica

    Oct 16, 2025 · cosmology, field of study that brings together the natural sciences, particularly astronomy and physics, in a joint effort to understand the physical universe as a unified whole.

  10. Nez Perce | History, Facts, Traditions, & Chief Joseph | Britannica

    Nez Perce, North American Indian people whose traditional territory centered on the lower Snake River and such tributaries as the Salmon and Clearwater rivers in what is now northeastern …