Many other stars are visible to the naked eye at night In a very broad sense, a star is simply one of those twinkling points of light you can see in the night sky Their immense distances from earth make them appear as fixed points of light.
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Of the tens of billions of trillions of stars in the observable universe, only a very small percentage are visible to the naked eye.
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. 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.
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. 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. 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. The pleiades, an open cluster of stars in the constellation of taurus
A star is a massive, luminous ball of plasma that is held together by its own gravity
The nearest star to earth is the sun, which is the source of most of the energy on earth Other stars are visible in the night sky, when they are not outshone by the sun.
