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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
- Stellar explosion was so powerful it could destroy a planet’s . . .
Astronomers say they spotted signs of a giant explosion releasing from a star beyond our solar system, one powerful enough to destroy a planet’s atmosphere
- Stars—facts and information | National Geographic
These large, swelling stars are known as red giants But there are different ways a star’s life can end, and its fate depends on how massive the star is
- What Is a Star? | Scientific American
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? - 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
- Star – Definition Detailed Explanation - Sentinel Mission
Main Sequence: The protostar continues to collapse until nuclear fusion begins in its core, leading to the formation of a stable star This stage is known as the main sequence, where the star burns hydrogen into helium
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