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  1. Star - Wikipedia

    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 …

  2. Star | Definition, Light, Names, & Facts | Britannica

    2 days ago · 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, …

  3. Stars - NASA Science

    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.

  4. Types of Stars | Stellar Classification, Lifecycle, and Charts

    Although main-sequence Red dwarfs are the most common stars in the universe, there are 7 main types of stars in total. Here is some information about each type of known star in our universe. Below, is a …

  5. What is a star? - Cool Cosmos

    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. …

  6. Stars—facts and information | National Geographic

    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.

  7. Star Facts - Interesting Facts about Stars

    Star birth can take millions of years and create families of stars. Astronomers see examples of star formation in nebulae throughout our own Milky Way Galaxy and in many other galaxies.

  8. List of Different Star Types - Star Classification & Guide

    Star classification chart & guide. Learn about all the main star types and their characteristics, including life cycle, mass, size, luminosity, temperature.

  9. Star Life Cycle Diagram | Stages of a Star - Star Walk

    Nov 20, 2023 · Home Infographics Life Cycle of A Star Nov 20, 2023 Topics: Stars Astronomy Basics

  10. Star Charts - Adventure Science Center

    Look just past Aldebaran for a grouping of stars called M-45, or the Pleiades Star Cluster. High above the head of Orion is the bright star Capella, part of Auriga the Charioteer.