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Rencontres du troisième typeAprès KIC 8462852, l'étoile EPIC 204278916 relance le débat sur une potentielle mégastructure extraterrestre
L'étoile KIC 8462852 a longtemps suscité l'intérêt des astronomes en raison de sa luminosité variable. Certains scientifiques s'étaient même interrogés sur l'hypothèse d'une mégastructure extraterrestre gravitant autour. Mais cette étoile n'est pas un cas unique : il en existe une autre, au comportement encore plus étrange.
13 septembre 2016