Assertion: earth asteroid | /r/CapableOf | see 99942 apophis
Facets:
Source sentences:
text: On some rare occasions, a near-Earth asteroid may briefly become visible without technical aid; see 99942 Apophis.
text: On some rare occasions, a near-Earth asteroid may briefly become visible without technical aid; see 99942 Apophis.
text: On some rare occasions, a near-Earth asteroid may briefly become visible without technical aid; see 99942 Apophis.
text: On some rare occasions, a near-Earth asteroid may briefly become visible without technical aid; see 99942 Apophis.