Definition of «icy planetesimals»

The phrase "icy planetesimals" refers to small objects made of ice and other materials that were present during the formation of planets. These icy planetesimals are like tiny building blocks that came together over time to create larger bodies, such as planets.

Sentences with «icy planetesimals»

Both this molecule and its simpler cousin hydrogen cyanide (HCN) were found in the cold outer reaches of the star's newly formed disk, in a region that astronomers believe is analogous to our own Kuiper Belt — the realm of icy planetesimals and comets beyond Neptune. (alma-telescope.jp)
A massive icy planetesimal disk or an unseen superjovian planet at $ r $ $ > $ 20 au may explain the disk's visibility. (arxiv.org)
Icy planetesimals likely were the carriers of materials like water and carbon compounds that are the fundamental building blocks of life. (treehugger.com)
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