1) Celestial body 2) Heavenly body
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https://www.crosswordclues.com/clue/planetesimal
Planetesimals z are solid objects thought to exist in protoplanetary disks and in debris disks. A widely accepted theory of planet formation, the so-called planetesimal hypotheses, the Chamberlin–Moulton planetesimal hypothesis and that of Viktor Safronov, states that planets form out of cosmic dust grains that collide and stick to form larger a...
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http://en.wikipedia.org/wiki/Planetesimal
of, like or pertaining to asteroids or similar tiny celestial bodies
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http://phrontistery.info/p.html
one of a class of bodies that are theorized to have coalesced to form Earth and the other planets after condensing from concentrations of diffuse ... [13 related articles]
Found on
http://www.britannica.com/eb/a-z/p/76
[
n] - one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
Found on
http://www.webdictionary.co.uk/definition.php?query=planetesimal
planetesimal 1. A small body that is the precursor of a planet in the early stages of solar system development, or the fragmented result of a cataclysmic collision between a planet and another celestial body. 2. A small rocky celestial object thought to have orbited the Sun in the early stages of the solar system before coalescing with others to fo...
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http://www.wordinfo.info/words/index/info/view_unit/2622/
noun one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.
