@nikolescribner2729

This channel is what people in the 90s thought of when they imagined the grand potential of the internet ❤

@mickeyb492

That was the most comprehensive explanation of quasars I've heard to date. It must have taken your team a long time to gather this information and make it presentable. Thank you for explaining the phenomenon that got me interested in cosmology in the first place 10+ years ago.

@aDoozie

Absolutely love all of your channels. Unreal that this is free. Thank you truly.

@nemesis6014

What I love about this channel is that I could sit through a whole video and not get lost half way through. The pacing and editing work so well helping retain information. I sometimes watch, better-yet, listen to these during naps and in my dreams I visualize everything almost similarly to the CGI segments in the videos. Kudos to Leila and David!

@WTEIncognito

I think if I could have one super power, it wouldn’t be to be a superhero or have billions of dollars, it would to be able to fly around space and be able to see and understand everything and just fly around looking at stuff

@luukipuuk3537

Literally had an audible gasp when I opened youtube and saw that you uploaded. I was literally planning on putting on your previous video for sleep! This is amazing.

@joz6683

I can't believe that I forgot about this dropping. This will help ne get ready for the week ahead. Thanks to everyone involved. I can not believe that making such good documentaries for free.

@brody4571

This has given me an idea about dark matter: the un-expected rotation of galaxies versus their mass is left-over spin from their, now no longer, active black holes.

@SeauxNOLALady

Radiation exposure is one of my greatest fears. It’s mostly invisible and undetectable unless you have a Geiger counter… I read about the people who lived down wind of the Trinity Test in New Mexico in the early forties. The bomb was detonated at five in the morning and it jolted people out of their beds. Two sisters looked outside and saw what looked like snow falling. They put on their bathing suits and went out to play in the radioactive fallout that they didn’t know was deadly. They rolled around in it and smeared it on their faces and bodies. Their community was only 35 miles away from the test site, and they weren’t warned or notified about the possibility of deadly exposure to radiation. Most people who were unknowingly exposed to the fallout were stricken with multiple cancers and autoimmune disorders in a disproportionate amount. The government finally admitted to their negligence and mistakes and awarded compensation to the victims of the devastating effects of radiation exposure that they caused during the Manhattan Project.

@iambiggus

One of the best channels on Youtube.

@Moudabo

I'll heartily echo this sentiments of others. Wonderfully written, clearly narrated, and spectacularly  graphically illustrated. Congratulations to your talented crew.  I've always wondered how those impossibly energetic relativistic jets could possibly be created. This is the best explanation I've come across - and yet, I still find their existence completely mind boggling.

@MarinCipollina

Best explanation of this phenomenon I've encountered online. The idea of quasars acting as galactic regulators of star formation activity is a fascinating one. There is much to consider. Top notch quality as always, History of the Universe team.. Profoundly edifying, engaging and very well written. Well done !

@GHOSTBOT-Stake

Im still convinced the most powerful thing in the universe is the plastic packaging of a sawzall blade frome home depot

@shadowtekmain

I love how this channel doesnt just teach you about cool space stuff, they tell you the story of how we found out each step ❤

@curzon176

Quasars are absolutely amazing and it boggles the mind that phenomena like that exist out there in the galaxy. It's also pretty amazing that the smart humans were able to science up that pretty comprehensive explanation of what they are, since the closest one is so very far away.

@Okla_Soft

Paul M Sutter wrote this episode!?

Holy shit, no wonder it was so excellent, I mean they’re all amazing but I’m glad you credited the writer on this one. Paul is one of the best Physics/Black Hole YouTube personalities but I hadn’t heard from him in a while.

@exin8494

Thank you History of the Universe team for all those videos! Fantastic quality as always :)

@cncdude9680

I wish I had paid more attention in school so I could have pursued a career in astronomy. It seems so interesting to me now that I’m older. Makes me feel so insignificant, like life doesn’t even matter. We could all be gone in an instant…

@JaYoeNation

I wonder how many young lives you shifted to astronomy as their passion and profession. Must be a huge number.

@meryitis

I watch your videos twice, first time I listen to it to fall asleep and I do in first 10 minutes and then when I wake up I listen to it again while getting ready