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True color image of the Trifid Nebula, showing complex gas and plasma structure A nebula (Latin for 'cloud, fog'; [1] pl. nebulae 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, such as in the Pillars of Creation in the Eagle Nebula. In ...
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.
Nebula are giant clouds of interstellar gas that play a key role in the life-cycle of stars.
Learn about a nebula in astronomy. Discover what a nebula is, types of nebulae, and their role in a star's life cycle.
An A-to-Z list of 150 notable nebulae of the night sky. Nebulae are interstellar gas and dust clouds that emit (emission nebulae), reflect (reflection nebulae), or absorb (dark nebulae) light of different wavelengths. Many large nebulae can have emission, reflection, and dark components, such as the large Orion nebula. Supernova remnants (SNR) are a type of emission nebula. See sidebar for ...
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. This definition, adopted at a time when very
We can agree that nebulae are some of the most majestic-looking objects in the universe. But what are they exactly?
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
Some nebulae emit their own light, some reflect the light from stars around them, and some only absorb light. But that's just the beginning.
The Orion Nebula is a picture book of star formation, from the massive, young stars shaping the nebula to the pillars of dense gas that may be the homes of budding stars. The Trapezium resides in the bright central region. Ultraviolet light unleashed by these stars carves a cavity in the emission nebula and disrupts the growth of hundreds of smaller stars.