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.

Understanding the Context

Dec 20, 2025 · 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. May 2, 2025 · 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. May 8, 2025 · How does a star work?

Key Insights

How do they form, live, and eventually die? Learn more about these distant objects and their major importance in the universe. 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. Apr 11, 2025 · In a very broad sense, a star is simply one of those twinkling points of light you can see in the night sky.

Final Thoughts

But that’s not terribly satisfying in either lexicological or physical terms. Dec 20, 2025 · 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. Sep 21, 2024 · As a star approaches the end of its lifespan, it no longer has hydrogen to transform into helium in its core. Unable to complete the nuclear fusion process, the star begins to. The meaning of STAR is a natural luminous body visible in the sky especially at night.

How to use star in a sentence. The amount of material in a star (its mass) is so huge that a nuclear reaction called nuclear fusion goes on inside it. This reaction changes hydrogen to helium and gives off heat.