Darkness Visible: New Insights on Black Holes 🌌

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 may soon have the first picture of the event horizon of Sagittarius A*, the black hole at the center of the Milky Way galaxy. And, with the power of math, scientists are going even further, using equations to “look” inside black holes, peering at the central singularity where general relativity and quantum mechanics collide. Join Brian Greene and other leading physicists and astronomers on a journey to make darkness visible.

The Big Ideas Series is supported in part by the John Templeton Foundation.

MODERATOR:
Brian Greene

PARTICIPANTS:
Shep Doeleman
Andrea Ghez
Vicky Kalogera
Cumrun Vafa

#worldsciencefestival #briangreene #blackhole #gravitationalphysics

Find out more about the program and the participants: https://www.worldsciencefestival.com/programs/darkness-visible-shedding-new-light-black-holes/

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Chapters:
00:00 – Introduction to Black Holes
10:40 – Introductions: Andrea Ghez & Shep Doeleman
11:45 – Are Black Holes really out there?
18:30 – Stellar motion reveals a Black Hole
28:20 – Using Earth as a giant telescope
41:30 – Gravitational waves & Einstein’s prediction
44:50 – Introduction: Vicky Kalogera
45:30 – LIGO and the detection of gravitational waves
55:00 – The sound of two Black Holes colliding
01:04:00 – What is a Neutron Star?
01:13:10 – Stephen Hawking’s insights on Black Holes
01:18:30 – Introduction: Cumrun Vafa
01:19:33 – The 2nd law of thermodynamics at the edge of a Black Hole
01:28:00 – Where does information go in a Black Hole?
01:36:50 – Particle pairs near a Black Hole

Darkness Visible: Shedding New Light on Black Holes
https://www.youtube.com/channel/UCShHFwKyhcDo3g7hr4f1R8A