Astronomers using the Hubble Space Telescope discovered that a jet from a supermassive black hole in a galaxy’s core causes stars, called novae, to erupt along its path. These stars are not inside the jet but are in a nearby hazardous area. The research, published on arXiv, reveals twice as many novae near the jet compared to other galaxy regions. This finding challenges current understanding of black hole jets. The jet, launched by a 6.5-billion-solar-mass black hole, extends 3000 light-years and travels nearly at light speed, posing risks even to nearby objects.