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  1. Star - Wikipedia

    A star is a luminous spheroid of plasma held together by self-gravity. [1] The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night; their immense distances from Earth …

  2. STAR Community Justice Center

    A Community-Based Correctional Facility is a local alternative to prison with the primary purpose of rehabilitation of non-violent, felony offenders in the nineteen counties that STAR serves.

  3. Star | Definition, Light, Names, & Facts | Britannica

    Jan 20, 2026 · A star is any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources. Of the tens of billions of trillions of stars in the observable universe, …

  4. Stars - NASA Science

    May 2, 2025 · A star’s gas provides its fuel, and its mass determines how rapidly it runs through its supply, with lower-mass stars burning longer, dimmer, and cooler than very massive stars.

  5. What Is a Star and How Does It Work? - ThoughtCo

    May 8, 2025 · How does a star work? How do they form, live, and eventually die? Learn more about these distant objects and their major importance in the universe.

  6. What is a Star? Types, Life Cycle, and Fascinating Facts

    May 3, 2025 · A star is a luminous sphere of plasma held together by gravity. It generates energy through nuclear fusion in its core — a process in which lighter atomic nuclei (typically hydrogen) …

  7. Stars - NASA

    Mar 31, 2025 · This landscape of “mountains” and “valleys” speckled with glittering stars is actually the edge of a nearby, young, star-forming region... Astronomers using NASA’s Hubble Space Telescope …

  8. What is a Star? - sciencenewstoday.org

    Mar 19, 2025 · Every star begins its life inside a nebula —a vast, cold cloud of gas and dust. These cosmic nurseries drift quietly through the galaxy until something disturbs them.

  9. Star - Formation, Evolution, Lifecycle | Britannica

    Jan 20, 2026 · Star - Formation, Evolution, Lifecycle: Throughout the Milky Way Galaxy (and even near the Sun itself), astronomers have discovered stars that are well evolved or even approaching …

  10. Types - NASA Science

    Dec 18, 2025 · Scientists call a star that is fusing hydrogen to helium in its core a main sequence star. Main sequence stars make up around 90% of the universe’s stellar population.