Chasing dark energy

le 23 octobre 2020, 11h à 13h, Alain BLANCHARD, salle Coriolis

Since a little more than twenty years the accelerated nature of the expansion of the universe has been evidenced and is now regarded as an established fact. The origin, the source of this accelerated expansion  is a vastly unknown! It means that « something » dubbed dark energy produces a repulsive gravitational force at the scales of the universe, with no hint on its actual nature. Many strategies have been developed to pin down its actual properties through ambitious facilities that will be presented during this seminar.