How Do You Observe a Black Hole? - YouTube

Black holes may hold the key to understanding the most fundamental truths of the universe, but how do you see something that’s, well, black? Astronomers think they have the answer. Thanks to a global array of radio telescopes that turn the Earth into a giant receiver, we've imaged one black hole (Messier 87) and may soon have the first picture of the event horizon of Sagittarius A*, the black hole at the center of the Milky Way galaxy. PARTICIPANTS: Shep Doeleman, Andrea GhezMODERATOR: Brian GreeneMORE INFO ABOUT THE PROGRAM AND PARTICIPANTS: program is part of the BIG IDEAS SERIES, made possible with support from the JOHN TEMPLETON FOUNDATION. - SUBSCRIBE to our YouTube Channel and "ring the bell" for all the latest videos from WSF - VISIT our Website: LIKE us on Facebook: FOLLOW us on Twitter: TOPICS:0:04 - Understanding escape velocity and black holes9:25 - Panelist introductions10:41 - Are black holes really out there?12:06 - What resides in the center of our galaxy?13:45 - Evidence of black holes20:26 - Kek telescope experiment24:43 - Event Horizon Telescope32:21 - Simulating a black hole34:27 - Will we find a deviation from Einstein’s theory?36:24 - What's the next phase of our understanding of gravity?PROGRAM CREDITS:- Produced by John Plummer - Associate Produced by Laura Dattaro- Animation/Editing by Josh Zimmerman- Music provided by APM- Additional images and footage provided by: Getty Images, Shutterstock, VideoblocksThis program was recorded live at the 2018 World Science Festival and has been edited and condensed for YouTube.Watch the full unedited program here:

Jim Newman

Jimmie Johnson

Hugs and Pugs

Keep up the great work! :)


Maybe they did it because the city was lost, so why not the album too lol

Rose Playz

I'm 14 and I have Instagram lmao 😂

AnTonya crazy kids

Russell Wilson is MY favorite QB ev1

Atomos Vrial

you missed mjolnir


I love myself, even though I look like a burnt chicken nugget, I still love myself

Sergio M. Urbizu

whats about dark souls reference?

Meenakshi 56259011

Dude perfect versus Avengers

Jesse F.

The transaction pieces are so cringe 😂

U are strong u are someone powerful

Erik Storm


Nicholas Ankeny

next time can you up blow me. please I want to be up blown

milky cow

This slaps

Rainy Rice

Too much respect for you. Been watching your channel for years and you never change your style unlike other channels who have turned for the worse. Keep doing what you're doing Guru. I appreciate you. You loyal. Another one.

oli ullah

Outstanding celebration


Rats with guns... RATS WITH GUUUUUNS!!!

Antoine Lanthier

number 1 is the mega meme

Federal Bureau Of Investigation

The word psychopath sounds badass


amazing shots check out my crazy shots

Joshua Logue

September 2020 anyone?

Matt Barr

In the last of us there is also a board game on the floor next to the door Henry leads you through when you pass through the you store. I forgot what it said, but I watch a YouTuber play and they pointed it out

Scarlet Shadow

This girl is such a jerk