Andrea Ghez: The hunt for a supermassive black hole

With new data from the Keck telescopes, Andrea Ghez shows how state-of-the-art adaptive optics are helping astronomers understand our universe’s most mysterious objects: black holes. She shares evidence that a supermassive black hole may be lurking at the center of the Milky Way.

TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the “Sixth Sense” wearable tech, and “Lost” producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on, at Watch a highlight reel of the Top 10 TEDTalks at


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20 responses to Andrea Ghez: The hunt for a supermassive black hole

  1. It should be called Maybe Science
    This is the biggest scientific debacle ever, Because many Quantum mechanical principles are ignored, nature abhors the formation of black holes. This black hole idea is like the epicycles of old. History is repeating itself. When asked; why do you believe? Answer: because the priests have said so, and in this case, it is the scientific priest of all the times.

  2. Watched this Ted Talk about 2 years ago. I had dropped out of highschool with only 5 subjects left to graduate and did not know what I wanted to do with my life. I was depressed and family issues were taking the best of me. Took me long enough but this year I'll be finishing high school and going to college to get a degree in Astronomy and could not be more excited for my future.
    I will always be greatful to Andrea for being so passionate about astrophysics, and for showing me what my passion is. Thank you, thank you, thank you❤

  3. Andrea Ghez my story that you and those scientist are lying about what that black hole is. That object is our Creator and you are making lite of it. oh light is being made from the center and thats bull about light not escaping

  4. I believe that black holes 'save'
    information that led to the formation and development of each galaxy, to
    'update' subsequent the universe, maybe in the same way the human genetic
    information is transmitted from one generation to the next. They also seem to
    control how much a galaxy can expand in space. I read that low
    mass, high metal stars may provide the best chances for locating rocky planets.
    So it seems that there is a ’pattern’ already identified out in space. Maybe
    each galaxy has a 'DNA’ .

  5. Funny then properties of a Black are in a sense like that of Subatomic particles like Electron or Quark. How big is electron? Is electron like a charged sphere or a infinite point? Black hole is the only macroscopic phenomenon that has remarkable semblance to a Microscopic world, A quark or electron is like a black-hole with mass, spin and charge, hence it needs some esoteric physics. What really happens when u compress a finite mass into infinite small  volume?? No one knows exactly.
    At big bang all the matter in this universe was in a single spot, how come it did not collapse into a black hole and rather blew up with a bang??

  6. There are simply no black holes…like there was never a big bang (debunked by non-cosmological red shift) … I could go on and on. Person with no face telling me I don't want to see what can't be seen…ahahaha what a ridiculous joke you are and your argument.

  7. Frankly I couldn't care less if you believe in black holes or not. People also believe the earth was flat a few centuries ago. Also nobody believed we would be able to fly let along travel to space. There is no bigger blind that the one who doesn't want to see.

  8. This amazes me…especially those stars orbiting around something….obviously not visable. I wish I could start over again and spend my life doing something like this. All of the people that talk at TED obviously look forward to going to work everyday.

  9. god was it a fight to watch this.. but it was interesting.. not sure if it was worth hearing that nails-on-chalkboard voice though


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