Blazar Update
"The IceCube Neutrino Detector at the South Pole
Hits Paydirt":
...And these led to the first ever identification of the birthplace of a
neutrino from outside our galaxy: in this case, the unimaginably
violent cosmic forge of a blazar.
Blazars are
incredibly bright natural sources of radio waves. They form when some of
the swirling material falling into a supermassive black hole is
converted into a hot radiating soup of elementary particles and then
gets blasted back out into space in the form of twin jets moving at
close to the speed of light.