The universe is expanding, but two exquisitely precise yardsticks say it’s doing so at two different speeds. That’s not a rounding error; it’s a philosophical| El Adelantado de Segovia
What happened on October 9, 2022, can only be described as an stellar explosion. A torrent of gamma rays —which was named GRB 221009A for future references—| El Adelantado de Segovia