Usage examples (35)

• The Murchison meteorite, as it is now known, is a fragment of a "planetesimal" or small, solid fragment that condensed out of the solar nebula as the solar system formed.
• A handful of components, scraping iron ore from a planetesimal.
• The inner satellite of Mars and the rings of Saturn make no special difficulty under the planetesimal hypothesis.
• Tendrils of it forced themselves into the loose material of the planetesimal, mining it for carbonaceous molecules.