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[[File:lighterstill.jpg]][[File:Dust-storm-negev-desert.jpg|right|frame]] *5a : a [[cloud]] of dust

...of_Creation Pillars of Creation]". In these regions the formations of gas, dust and other materials "clump" together to form larger [[mass]]es, which [[att

...other small body populations, such as comets, centaurs and interplanetary dust, freely travel between regions. ...creates a bubble in the [https://en.wikipedia.org/wiki/Interstellar_medium interstellar medium] known as the [https://en.wikipedia.org/wiki/Heliosphere heliosphere

...usually highly [[eccentric]] [[orbit]], that consists primarily of ice and dust, and that often [[develops]] one or more long tails when near the [[sun]] ...]] of the comet. Comet [[nuclei]] are themselves loose collections of ice, dust, and small rocky [[particles]], ranging from a few hundred meters to tens o

...i/Meteoroid meteoroids], [https://en.wikipedia.org/wiki/Comet comets], and dust in [[orbit]]. About three-quarters of the Sun's mass consists of [https://e ...0 AU. The bubble in the [https://en.wikipedia.org/wiki/Interstellar_medium interstellar medium] formed by the solar wind, the heliosphere, is the largest [[continu

...esis nucleosynthesis]. Supernovae play a significant role in enriching the interstellar medium with the heavier atomic [[mass]] chemical elements. Furthermore, the

...es can also contain many multiple star systems, star clusters, and various interstellar clouds. The [[Sun]] is one of the stars in the Milky Way galaxy; the Solar

...und magnetic fields. Additionally, a number of spectral lines produced by interstellar gas, particularly the [[hydrogen]] spectral line at 21 cm, are observable a ...of objects are observable at radio wavelengths, including [[supernova]]e, interstellar gas, [[pulsar]]s, and active galactic nuclei.

...led [[interplanetary space]], which passes over into [[interstellar medium|interstellar space]] at what is known as the [[heliopause]]. ...mic particle]]s. There is also some gas, [[Plasma (physics)|plasma]] and [[dust]], and small [[meteor]]s. Additionally, there are signs of human life in o