Very-long-baseline interferometry is a type of astronomical interferometry used in radio astronomy. In VLBI a signal from an astronomical radio source, such as a quasar, is collected at multiple radio telescopes on Earth or in space. From Wikipedia
The peer-reviewed paper attributes PKS 1424+240’s intense gamma-ray and neutrino output to a jet aligned within 0.6° of Earth that is threaded by a toroidal magnetic field.
