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  1. Spartanburg | Upstate, Piedmont, Textile | Britannica

    Spartanburg, city, seat (1785) of Spartanburg county, in the Piedmont section of northwestern South Carolina, U.S. It lies in the foothills of the Blue Ridge Mountains 30 miles (50 km) …

  2. Spartanburg | Upstate, Piedmont, Mountains | Britannica

    Spartanburg, county, northern South Carolina, U.S. It is bordered to the north by North Carolina and to the southwest by the Enoree River. The county is also drained by the Tyger and …

  3. What Is Plenary Authority? | Meaning, Examples, & Facts | Britannica

    Oct 9, 2025 · Plenary authority is understood as the broad and effectively limitless power of a single government or the unrestricted power of government branches, departments, or officials …

  4. Zhang Heng | Inventor, Scientist, Engineer | Britannica

    Zhang Heng was a Chinese mathematician, astronomer, and geographer. His seismoscope for registering earthquakes was apparently cylindrical in shape, with eight dragons’ heads …

  5. Day of the Dead, Mexico, Traditions, & Decorations - Britannica

    Sep 26, 2025 · An ofrenda is an altar for the Day of the Dead festival that is set up to welcome and honor the deceased. It is typically decorated with various objects, including photographs …

  6. Comet 3I/ATLAS | Interstellar Comet, Facts, Size, & Speed | Britannica

    Sep 29, 2025 · Hubble Space Telescope observations of Comet 3I/ATLAS place its diameter between 320 meters and 5.6 km (1,050 feet and 3.5 miles). The comet will have its closest …

  7. Definition, Formation, Types, Properties, & Facts - Britannica

    Oct 21, 2025 · Virtually all galaxies appear to have been formed soon after the universe began, and they pervade space, even into the depths of the farthest reaches penetrated by powerful …

  8. Telescope - Optics, Astronomy, Instrumentation | Britannica

    Sep 5, 2025 · His telescope had greater reflecting power than Rosse’s, and it enabled him to catalog 600 new nebulae as well as to discover several satellites of the outer planets — Triton …

  9. What Definition & Meaning | Britannica Dictionary

    WHAT meaning: 1 : used to ask for information about someone or something; 2 : used to describe a question

  10. What Is Cryptocurrency? Definition & How It Works | Britannica …

    Oct 15, 2025 · Karl Montevirgen is a professional freelance writer who specializes in the fields of finance, cryptomarkets, content strategy, and the arts. Karl works with several organizations in …