Below are some selected press releases and articles. I am happy to answer any questions you might have.
https://aasnova.org/2019/05/29/do-active-galactic-nuclei-help-or-hurt-life/
Paper: https://iopscience.iop.org/article/10.3847/2041-8213/aaef2d/pdf
Science Magazine Article
Universe Today
Press Release: http://adsabs.harvard.edu/abs/2012MNRAS.423..948G
Time Magazine
National Geographic
Press Release: https://www.cfa.harvard.edu/news/2015-19
EarthSky
IBT