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 …

Jan 20, 2026 · Star, any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources. This article describes the properties and evolution of individual …

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. More …

Sep 21, 2024 · Stars Stars are massive, luminous spheres of gas, mainly composed of hydrogen, with smaller amounts of helium and other elements. The lifespan of a star varies widely, generally ranging …

May 8, 2025 · 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.

Everything you wanted to know about stars These luminous balls of gas helped ancient explorers navigate the seas and now help modern-day scientists navigate the universe.

The meaning of STAR is a natural luminous body visible in the sky especially at night. How to use star in a sentence.

Jan 4, 2021 · The definition of a star is as rich and colorful as, well, the stars themselves.

A star is a huge glowing ball of hot gas, mainly hydrogen and helium. The temperature is so high in its core that nuclear fusion occurs, producing energy. The outward pressure of gas heated by fusion is …

Apr 11, 2025 · In a star’s core, fusion takes terrific temperature and pressure that is provided by the crushing gravity of the star’s overlying mass.