Assertion: asteroid belt's asteroid | /r/HasProperty | remnants of an exploded planet
Facets:
Source sentences:
text: In earlier works, asteroids provided grist for theories as to their origin – specifically, the theory that the asteroids are remnants of an exploded planet.
text: Scientists once thought asteroids were remnants of exploded planets.
text: Before colonization of the asteroids became an attractive possibility, a main interest in them was theories as to their origin – specifically, the theory that the asteroids are remnants of an exploded planet.