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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 …

  2. Star ID - Alabama Law Enforcement Agency

    2025年5月7日 · In order to comply with the Federal REAL ID Act, the Alabama Law Enforcement Agency developed the STAR ID program. STAR ID is a step beyond an ordinary Alabama …

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

    2025年8月30日 · What is a star? 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 …

  4. Stars - NASA Science

    2025年5月2日 · 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

    2025年5月8日 · 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. STAR Definition & Meaning - Merriam-Webster

    The meaning of STAR is a natural luminous body visible in the sky especially at night. How to use star in a sentence.

  7. What is a Star? - Universe Guide

    2025年10月6日 · The simplest way to describe a star is that it is a great ball of fire, but it is more complicated than that. A star is a giant ball of hydrogen turning into helium through nuclear …

  8. What is a star? - Cool Cosmos

    A star is a huge sphere of very hot, glowing gas. Stars produce their own light and energy by a process called nuclear fusion. Fusion happens when lighter elements are forced to become …

  9. What Is a Star? | Scientific American

    2025年4月11日 · In a very broad sense, a star is simply one of those twinkling points of light you can see in the night sky. But that’s not terribly satisfying in either lexicological or physical terms.

  10. What is a Star? (article) | Stars | Khan Academy

    Where Do Stars Come From? Every star forms in a huge cloud of gas and dust. Over time, gravity causes the cloud to contract, drawing the gas closer and closer together. As more gas …