Nebula
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Nebula - Wikipedia
A nebula (Latin for 'cloud, fog'; [1] pl.: nebula, or nebulas[2][3][4][5]) 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, …
What Is a Nebula? | NASA Space Place – NASA Science for Kids
2025年1月14日 · A nebula is a giant cloud of dust and gas in space. Some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova. Other nebulae are regions where new stars are beginning to form.
What is a Nebula? Nebula: Definition, Location and Variants - Space
2024年6月17日 · Nebula is Latin for "mist, vapor, fog, smoke, exhalation," but in an astronomical context, it refers to any celestial object that appears cloud-like when viewed through a telescope.
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.
Planetary Nebulas - Harvard–Smithsonian Center for Astrophysics
When a star like our Sun dies, it doesn’t explode into a supernova or collapse into a black hole. Instead, it gently sheds its outer layers, which form a beautiful cloud called a “planetary nebula”, while the dying star’s core becomes a white dwarf.
NASA SVS | Hubble's Field Guide to Nebulae
2021年11月1日 · Nebulae are some of the most resplendent objects in the universe, but it’s easy to confuse which one is an “emission nebula,” and which one is an “absorption nebula.” Thankfully, this “Field Guide” will give you a quick rundown so you can impress all of your friends with your Nebulae Knowledge!
Hubble Studies the Tarantula Nebula’s Outskirts - NASA
23 小时之前 · At its center, the Tarantula Nebula hosts the most massive stars known, weighing roughly 200 times the mass of the Sun. The section of the nebula shown here features serene blue gas, brownish-orange dust patches, and a sprinkling of multicolored stars. The stars within and behind the dust clouds appear redder than those that are unobscured by dust.
Space Place in a Snap: What Is a Nebula? | NASA+
2023年10月13日 · Nebulae are far away from Earth. We know what they look like because scientists use powerful telescopes to capture images of them. A nebula can take many different forms and shapes, but where did these stunning dust clouds come from?
Hubble Studies the Tarantula Nebula’s Outskirts - NASA Science
11 小时之前 · At its center, the Tarantula Nebula hosts the most massive stars known, weighing roughly 200 times the mass of the Sun. The section of the nebula shown here features serene blue gas, brownish-orange dust patches, and a sprinkling of multicolored stars. The stars within and behind the dust clouds appear redder than those that are unobscured by dust.