
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 …
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 …
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 …
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.
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.
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.
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 …
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 …
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.
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 …