Observatoire des droits humains (anglais seulement)

Has Earth been visited by an alien spaceship? Harvard professor Avi Loeb vs everybody else

(Version anglaise seulement)

par Simon Goodwin, Professor of Theoretical Astrophysics, University of Sheffield

A highly unusual object was spotted travelling through the solar system in 2017. Given a Hawaiian name,ʻOumuamua, it was small and elongated – a few hundred metres by a few tens of meters, travelling at a speed fast enough to escape the Sun’s gravity and move into interstellar space.

I was at a meeting when the discovery of ʻOumuamua was announced, and a friend immediately said to me, “So how long before somebody claims it’s a spaceship?” It seems that whenever astronomers discover anything unusual,…

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