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1. Stars - NASA Science
nasa.gov
Link: https://science.nasa.gov/universe/stars/
Description: WEBAstronomers estimate that the universe could contain up to one septillion stars – that’s a one followed by 24 zeros. Our Milky Way alone contains more than 100 billion, including our most well-studied star, the Sun. Stars are giant balls of hot gas – mostly hydrogen, with some helium and small amounts of other elements.
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2. Star | Definition, Light, Names, & Facts | Britannica
britannica.com
Link: https://www.britannica.com/science/star-astronomy
Description: WEBApr 12, 2024 · Star, any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources. This article describes the properties and evolution of individual stars. Included in the discussion are the sizes, energetics, temperatures, masses, and chemical compositions of stars.
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3. Star - Wikipedia
wikipedia.org
Link: https://en.wikipedia.org/wiki/Star
Description: WEBA 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 make them appear as fixed points of light.
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4. Stars—facts and information - National Geographic
nationalgeographic.com
Link: https://www.nationalgeographic.com/science/article/stars
Description: WEBMar 20, 2019 · Stars 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...
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5. Stars: Facts about stellar formation, history and classification
space.com
Link: https://www.space.com/57-stars-formation-classification-and-constellations.html
Description: WEBSep 26, 2022 · Stars 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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6. Types - NASA Science
nasa.gov
Link: https://science.nasa.gov/universe/stars/types/
Description: WEBTypes of Stars The universe’s stars range in brightness, size, color, and behavior. Some types change into others very quickly, while others stay relatively unchanged over trillions of years. Main Sequence Stars A normal star forms from a clump of dust and gas in a stellar nursery. Over hundreds of thousands of years, the clump […]
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7. What Is a Star? | Types of Stars - Sky & Telescope
skyandtelescope.org
Link: https://skyandtelescope.org/astronomy-resources/what-is-a-star/
Description: WEBJul 15, 2014 · A 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?
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8. Star Facts - Interesting Facts about Stars - Space Facts
space-facts.com
Link: https://space-facts.com/stars/
Description: WEBStars are the main components of galaxies, and were among the first objects to form in the early universe. The closest star to Earth is the Sun. Facts About Stars. There are 9,096 stars visible to the naked eye in the entire sky. To see more, you have to use a telescope to reveal stars fainter than your eyes can see.
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9. Exploring the Birth of Stars - NASA Science
nasa.gov
Link: https://science.nasa.gov/mission/hubble/science/science-highlights/exploring-the-birth-of-stars
Description: WEBStars form in large clouds of gas and dust called nebulae that scatter the visible wavelengths of light our eyes can see. The longer wavelengths of infrared light can pass through the cloud relatively undisturbed. Hubble’s near-infrared capabilities and high resolving power make it an important tool in the study of how stars form.
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10. How Do Stars Form? A Stellar Journey from Dust to Dazzle
howstuffworks.com
Link: https://science.howstuffworks.com/how-are-stars-formed.htm
Description: WEBOct 13, 2023 · Astronomy. Stars. How Do Stars Form? A Stellar Journey from Dust to Dazzle. By: Robert Lamb & Austin Henderson | Updated: Oct 13, 2023. If you're lucky, you see the stars glimmering overhead each night. But how do those flecks of light come into existence? Pedro Díaz Molins / Getty Images.
