noun Télécharger 🔗Partager Supernova, explosion d'étoile The explosion of a star, which increases its brightness to typically a billion times that of our sun, though attenuated by the great distance from our sun. Some leave only debris (Type I); others fade to invisibility as neutron stars (Type II). Examples : "Astronomers observed a brilliant supernova in a distant galaxy, temporarily outshining all the other stars around it. " Les astronomes ont observé une brillante supernova dans une galaxie lointaine, éclipsant temporairement toutes les autres étoiles qui l'entouraient. astronomy space physics science phenomena Chat avec IAJeu de vocabulairePratiquer la lecture