The unusual comet—which is to pass Earth again in the coming weeks—is only the third known object to visit us from outside the solar system.

The latest trio — Zhang Lu, Wu Fei and Zhang Hongzhang — are the crew of the Shenzhou-21 mission, whose return capsule was taken home by the Shenzhou-20 crew following a potential space debris collision that rendered their original capsule inoperable.

Astronomers refute Avi Loeb's 'misinformation' regarding interstellar comet 3I/ATLAS, proving its natural origins despite 'alien' anomalies.