@HistoryoftheUniverse

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@AvaByNight

As an german I find it imennsly entertaining, that an guy called Schwarzschild calculated the no return area and it's named after him, because "Schwarzschild" in german means "black shield". Untill I learned the no return border was named after an person I thought it was an term coined by an scientist because it's just fitting, just like the term "black hole"

@hmburdock5818

It’s so nicely narrated that I often just listen to it when I go to sleep. My thoughts are then somewhere between the stars. But the first time I always watch it in full :) thanks for that great content and quality!

@johnodanahue6242

Your team have really improved, the flow, content and overall depth is really really good! 
It makes for really great viewing, I look forward to more uploads to the history of the earth channel as well!

Please keep up the uploads, if there is a way to support you guys directly like patreon to get more uploads on this channel and history of the earth channel make available to the subscribers. 

You narration skills have really really improved David! Well done and I continue to look forward to more uploads’

@chadsheldon6470

Karl Schwarzschild has always fascinated me. He’s on the front lines of the war and when he’s not fighting, he chooses to derive field equations for Einstein’s General Theory of Relativity. He survives the war only to die of a skin disease. Dude was fascinating to me.

@universemaps

Wow! This video is awesome and it's an honor that you used my images. Thanks for taking the time to mention my full name in the description. Keep it up!

@sebastianrogel5953

Yesss!
Nice...
I'm chronically ill and don't have much to look forward to in life.
Your wonderful series helps me get my mind off of the gruelling pain and be at ease for a while.

Thank you

@leebuckley7436

The content and quality of your work is absolutely amazing 👏.  Always looking forward to your next posting 🥰

@jerzyskoryna

¡Gracias!thank you so much for more than outstanding documentaries, and also the perfect english you use, for a spanish native your locution is clear and very musical for my ear! Hope you keep doing this amazing material!

@maclagor2465

David Attenborough of space

@gravitationalredshift

Holy crap!! I've seen a hefty amount of black hole documentaries, but this one takes my #1 spot! The narration, visuals, and music all come together so well, this is amazing!

@Ashborn077

Extremely good and interesting video. Thank you for the incredible work

@jondavey5407

That was the best and most terrifying description of falling into a black hole I’ve ever head and I’ve heard many.

@Dope_FiveO

In the past month or two, I've had quite the challenge of finding a video on astronomy that's not only put together really well but also informative and captivating. I found this for the first time today and watched it. It's unequivocally nothing short of amazing! I wholeheartedly appreciate the amount of time and effort that was put into this. THANK YOU for delivering such quality content.

@Sahxocnsba

Hey David, just want to thank you guys for these videos. I could genuinely see this series on Netflix but I'm happy it's here on YouTube. I deal with anxiety and trouble sleeping without something to fall asleep to some times, so I have watched all these videos multiple times. There's something really soothing about hearing you talk about history and cover topics in these videos and falling asleep to have crazy dreams of outer space and other planets/stars. Keep up the good work you guys :)

@Bones-l4b

I'm Andy, I just  started watching videos  on Quantum Physics, and on the universe, I am so fascinated with this, more likely I'll watch it 2 to 3 times or more, im writing down and learning, thank you keep playing these vids

@Big_Gourdo

The stunning, incomprehensible, and beautiful parts of our universe touched on in your videos is greatly appreciated. Thank you so much for your dedication to this content. 

@ro4eva

'Incomprehensible Horror' -- Without a doubt, my favorite description of a black hole.

@MarsJenkar

Eight days after John Wheeler's fateful lecture, the Star Trek episode "Tomorrow is Yesterday" aired, where the concept showed the starship traveling backward in time upon escaping an encounter with a superdense "black star".  Star Trek came very close to naming the phenomenon we know as a black hole!