Quasars, or extremely active black holes are the brightest objects in the universe. But aren't black holes meant to be invisible? VR180 version of this video: https://bit.ly/34ZiJl3 Based on the Illustris Project simulation, we also look at radio-mode and quasar-mode feedback, seemingly exploding galaxies. SUBSCRIBE for more videos about our other planets. Subscribe! http://goo.gl/WX4iMN Facebook! http://goo.gl/uaOlWW Twitter! http://goo.gl/VCfejs Astrum Hindi: https://bit.ly/2OawGpx Astrum Spanish: https://bit.ly/2KmkssR Donate! Patreon: http://goo.gl/GGA5xT Ethereum Wallet: 0x5F8cf793962ae8Df4Cba017E7A6159a104744038 Become a Patron today and support Astrum! Donate link above. I can't do it without you. Patreons can help pick the next Astrum Answers in a fortnightly poll. Thanks to those who have supported so far! Image Credits: NASA/ESA/ESO/Illustris Project Music Credits: Charon - Joseph Reilly