ꞌOumuamua — an interstellar visitor

The trajectory of the asteroid Oumuamua, the first interstellar object detected in our solar system. Oumuamua’s visit is brief, lasting only a few months, but it provides food for thought: what other such objects have passed close by Earth and what might they have brought hither from across the vast cosmic gulfs. Arrhenius’s pan-spermia hypothesis comes to mind — link >>>

Artistic depiction of Oumuamua. Picture by European Southern Observatory

Artist’s impression of the interstellar asteroid `Oumuamua

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