Assertion: iridium | /r/AtLocation | meteor
Facets:
Source sentences:
text: Further research also revealed that iridium is more common in meteors, which is why some researchers believe that it originated in space.
text: Because iridium is common in meteors and has been detected as far back as 65 million years, some researchers believe that an asteroid filled with iridium crashed into the Earth and wiped out the dinosaurs.