Cosmic dust
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Cosmic dust – also called extraterrestrial dust, space dust, or star dust – is dust that occurs in outer space or has fallen onto Earth. Most cosmic dust particles measure between a few molecules and
Porous chondrite dust particle
Artist's impression of dust formation around a supernova explosion.
Zodiacal light caused by cosmic dust.
Cosmic dust of the Andromeda Galaxy as revealed in infrared light by the Spitzer Space Telescope.
Nebula
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A nebula 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 the P
Cosmic dust
…has its own interplanetary dust cloud, as do extrasolar systems. There are different types of nebulae with different physical causes and processes: diffuse nebula, infrared (IR) reflection nebula, supernova remnant, molecular cloud, HII regions, photodissociation regions, and dark nebula. Distinctions between…
True color image of the Trifid Nebula, showing complex gas and plasma structure
Portion of the Carina Nebula
NGC 604, a nebula in the Triangulum Galaxy
The Omega Nebula, an example of an emission nebula