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 …

Mar 11, 2026 · 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.

Apr 29, 2026 · What is a star? 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 …

Jun 3, 2025 · What are stars, how do they form and die? Our guide packed with facts about stars and answers to some of the most commonly-asked questions.

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.

5 days ago · Capella, Alpha Aurigae (α Aur), is a quadruple star system composed of two pairs of binary stars located 41.929 light-years away in the northern constellation Auriga…

Sep 26, 2022 · How are stars named? And what happens when they die? These star facts explain the science of the night sky.