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 …

Dec 4, 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 observable universe, …

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.

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

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.

2 days ago · The process continues for millions of years during the star's helium-burning phase, creating the nitrogen excess observed in GS 3073. The models, published in the Astrophysical Journal …

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.