Pulses originating almost a billion light-years away hint at extreme physics near a supermassive black hole.
The post Blazar's Outburst Hid Repeating Signal appeared first on Sky & Telescope.
Pulses originating almost a billion light-years away hint at extreme physics near a supermassive black hole.
The post Blazar's Outburst Hid Repeating Signal appeared first on Sky & Telescope.