Telescopes detect massive radio jet from ancient quasar in early universe

Telescopes worldwide have detected a massive radio jet from a quasar that formed within the first billion years of the universe. This jet is the largest observed from such an early cosmic period, measuring at least 200,000 light-years across. Previously, radio jets were difficult to observe in the early universe due to interference from the cosmic microwave background. This discovery highlights the extreme nature of the quasar, which is 450 million times the mass of the sun. The findings were reported in the Astrophysical Journal Letters, with contributions from observatories in Europe, Hawaii, and Texas. Quasars are bright galactic cores powered by gas and dust falling into black holes.