Optical and gamma-ray observations of the blazar S4 0954+65 in a period of extreme variability Optical and gamma-ray observations of the blazar S4 0954+65 in a period of extreme variability By barbara balmaverde|2023-11-29T15:36:41+01:00November 28th, 2023|NEWS, NEWS SCIENTIFICHE| by Claudia M. Raiteri One of the most interesting [...] Read More Comments Off on Optical and gamma-ray observations of the blazar S4 0954+65 in a period of extreme variability