Priyamvada Natarajan

Astronomers noticed that the light of quasars flickers like a candle flame. By analyzing the flickering pattern, they can determine the quasar's true brightness and calculate its distance. This allowed them to peer into the Universe's past and see that dark energy may not have been constant over tim

Telescope images revealed a region in a distant galaxy where billions of stars had disappeared. The void was caused by a pair of supermassive black holes whose combined mass is an absolute record. The discovery helps understand the growth of giant galaxies.