About 375,000 results
Open links in new tab
  1. Stars - NASA Science

    May 2, 2025 · Stars are giant balls of hot gas – mostly hydrogen, with some helium and small amounts of other elements. Every star has its own life cycle, ranging from a few million to …

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

    Oct 27, 2025 · This article describes the properties and evolution of individual stars. Included in the discussion are the sizes, energetics, temperatures, masses, and chemical compositions of …

  3. Star - Wikipedia

    Historically, stars have been important to civilizations throughout the world. They have been part of religious practices, divination rituals, mythology, used for celestial navigation and …

  4. The Stars - Center for Planetary Sciences

    False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth. Image courtesy of NASA. What are Stars? A star is a massive, luminous sphere of plasma held …

  5. Stars—facts and information | National Geographic

    Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores.

  6. Stars | Astronomy.com

    Stars are spherical balls of hot, ionized gas (plasma) held together by their own gravity. Stars are the most fundamental building blocks of our universe.

  7. Stars - WorldAtlas

    Sep 21, 2024 · 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 …

  8. The ‘Lost Sisters’ of the Pleiades Fill the Entire Night Sky

    4 days ago · Astronomers identified more than 3,000 stars associated with the cluster, and there might be even more.

  9. What Is a Star and How Does It Work? - ThoughtCo

    May 8, 2025 · Stars are huge balls of hot, glowing gas that make light and heat through fusion. Stars come in different sizes and colors, and each one has a life cycle like our Sun. As stars …

  10. What are stars and how many are there in the Universe?

    Stars are massive, luminous celestial bodies that can be seen in the night sky with the naked eye. Some stars glow red or yellow, while other stars glow blue or white.