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Bookmark or Share- Stars 101 | National Geographic - YouTubeNational Geographic. 22.9M subscribers. 25K. 2.4M views 4 years ago #NationalGeographic #Stars #Educational. Countless stars dot the night sky. Learn how these celestial objects form, how they...
- Star - Formation, Evolution, Lifecycle | Britannicastellar evolution. Throughout the Milky Way Galaxy (and even near the Sun itself), astronomers have discovered stars that are well evolved or even approaching extinction, or both, as well as occasional stars that must be very young or still in the process of formation.
- Stars—facts and information - National GeographicStars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores. Aside from our sun, the dots of light we see in...
- What Is a Star? | Types of Stars - Sky & TelescopeA star is a luminous ball of gas, mostly hydrogen and helium, held together by its own gravity. Nuclear fusion reactions in its core support the star against gravity and produce photons and heat, as well as small amounts of heavier elements. The Sun is the closest star to Earth. Where do stars come from?
- Stars: Facts about stellar formation, history and classificationStars are giant, luminous spheres of plasma. There are billions of them — including our own sun — in the Milky Way galaxy. And there are billions of galaxies in the universe. So far, we have...
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