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    Nebula - Wikipedia

    A nebula (Latin for 'cloud, fog'; pl.: nebulae, or nebulas ) is a distinct luminescent part of interstellar medium, which can consist of ionized, neutral, or molecular hydrogen and also cosmic dust. Nebulae are often star-forming regions, such as in the Pillars of Creation in the Eagle Nebula. In these regions, the formations of … See more

    Around 150 AD, Ptolemy recorded, in books VII–VIII of his Almagest, five stars that appeared nebulous. He also noted a region of nebulosity … See more

    There are a variety of formation mechanisms for the different types of nebulae. Some nebulae form from gas that is already in the See more

    Nebulae, SEDS Messier Pages
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  3. What Is a Nebula? | NASA Space Place – NASA Science for Kids

  4. Nebula | Definition, Types, Size, & Facts | Britannica

    nebula, any of the various tenuous clouds of gas and dust that occur in interstellar space. The term was formerly applied to any object outside the solar system that had a diffuse appearance rather than a pointlike image, as in the case of a star.

  5. Decoding Nebulae - Science@NASA

    Aug 23, 2021 · Nebulae are giant clouds of gas and dust in space. They’re commonly associated with two parts of the life cycle of stars: First, they can be nurseries forming new baby stars. Second, expanding clouds of gas and dust …

  6. Nebula – Definition, Examples, Types, Facts - Science …

    Oct 23, 2024 · What Is a Nebula? A nebula is a giant cloud of gas and dust in space. Nebulae can serve as stellar nurseries where new stars are born or as the remnants of stars that have exploded as supernovae. These colorful clouds …

  7. What Is a Nebula? Types, Sizes and Origin - Orbital …

    Sep 20, 2024 · Nebulae are composed primarily of hydrogen and helium, which are found in the interstellar medium, as well as stardust and other elements. Hydrogen makes up about 90% of its mass, and helium makes up about 10%.

  8. Nebulae: What Are They And Where Do They Come …

    Dec 24, 2015 · In fact, it is made up of gas and dust particles known collectively as the Interstellar Medium (ISM). Approximately 99% of the ISM is composed of gas, while about 75% of its mass takes the...

  9. What is a Nebula? - National Space Centre

    Jun 18, 2024 · Nebulae are primarily made up of hydrogen and helium gas with trace amounts of heavier elements and dust. They are often the birthplaces of stars! Regions within a nebula can collapse under gravity and lead to the …

  10. Nebula - Gas, Dust, Radiation | Britannica

    The optical appearance of most nebulae is significantly modified by the obscuring effects of the dust. The chemical composition of the gas phase of the interstellar medium alone, without regard to the solid dust, can be determined from the …

  11. How Are Nebulae Formed? - Little Astronomy

    Jul 18, 2022 · Nebulae are formed in the interstellar medium, which is the semi-empty space between star systems. There are five types of nebulae and each of them is created through different methods. These are: Supernova remnants; …

  12. What is a Nebula? Nebula: Definition, Location and …

    Jun 17, 2024 · There are several different types of nebula, depending on how they form and their composition. Most nebula are primarily made of gas, which is able to glow with its own light, creating the...

  13. What is a Nebula? Each Type & Example Photos - AstroBackyard

  14. Formation Of Nebula: How Is A Nebula Formed? - SciQuest

  15. What Are Nebulae And How Are They Formed? - Astronomy Trek

  16. Nebulae Facts - Space Facts

  17. What Are Nebulae? An Introduction to Cosmic Clouds

  18. What is a Nebula in Space: Simple Definition, Made of

  19. What is a nebula? - Space Center Houston

  20. What Is a Nebula? - MSN

  21. Nebulae - Celestial Objects on Sea and Sky

  22. What is nebulae composed of? - Answers

  23. Nebula | Alpine Hat

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