All  

Oumuamua

An artist's interpretation of the strange cigar shape of ‘Oumuamua.’  Source: ESO/M. Kornmesser

Astronomers Studying The Oumuamua ‘Alien Spaceship’ Identify Its Interstellar Origins

The huge, strange, cigar-shaped object known as ‘Oumuamua’ originated beyond our solar system and “is consistent with a natural origin” and “probably not" an alien controlled interstellar spaceship,...