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- 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 make them appear as fixed points of light
- Star | Definition, Light, Names, Facts | Britannica
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, only a very small percentage are visible to the naked eye
- Stars - NASA Science
At the beginning of the end of a star’s life, its core runs out of hydrogen to convert into helium The energy produced by fusion creates pressure inside the star that balances gravity’s tendency to pull matter together, so the core starts to collapse
- 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 and How Does It Work? - ThoughtCo
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
- What is a Star? (article) | Stars | Khan Academy
Though stars may appear static, they rotate and vary in luminosity There are hundreds of billions of stars in the Milky Way Galaxy alone Among them is our Sun, the closest star to Earth
- Stars - WorldAtlas
The star’s size, temperature, and luminosity slowly evolve when it is in its main sequence, a stage that can last millions or billions of years Our Sun is currently in the middle of its main sequence phase
- 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 heavier elements When this happens, a tremendous amount of energy is created causing the star to heat up and shine Stars come in a variety of sizes and colors
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