Meteoroids

Chondrites; Carbonaceous Chondrite; Chondrite; Chondrite, Carbonaceous; Chondrites, Carbonaceous; Comet (Astronomy); Meteor; Meteorite; Meteoroid
Any solid objects moving in interplanetary space that are smaller than a planet or asteroid but larger than a molecule. Meteorites are any meteoroid that has fallen to a planetary surface. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)