Many other stars are visible to the naked eye at night This reaction changes hydrogen to helium and gives off heat. Their immense distances from earth make them appear as fixed points of light.
Star - Wikipedia
Of the tens of billions of trillions of stars in the observable universe, only a very small percentage are visible to the naked eye.
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The meaning of star is a natural luminous body visible in the sky especially at night How to use star in a sentence. 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. Life cycle of a star what is a star A star is a giant sphere of extremely hot, luminous gas (mostly hydrogen and helium) held together by gravity Stars are essentially the building blocks of galaxies and are the source of all the heavier elements.
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. 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 accumulates at the center, it becomes denser and pressure increases This causes it to heat up and begin to glow. 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. 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 fusion.
The amount of material in a star (its mass) is so huge that a nuclear reaction called nuclear fusion goes on inside it
