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Science5 juin 2020
© EUROPEAN SOUTHERN OBSERVATORY/AFP/ARCHIVES - M. KORNMESSERAstéroïde
Oumuamua : l'objet interstellaire mystère pourrait être un énorme morceau de glace d'hydrogène
Selon une nouvelle étude, l'objet interstellaire baptisé Oumuamua serait composé en bonne partie de glace d'hydrogèneglace de dihydrogène. Comment est-il arrivé jusqu'à nous ? Qu'est-ce qui rend Oumuamua si exceptionnel ? Est-ce un astéroïde comme les autres ?
Oumuamua : l'objet interstellaire mystère pourrait être un énorme morceau de glace d'hydrogène
avecOlivier Sanguy