Black Holes

Tell me your favorite episode for the 6th anniversary show! For thousands of years, Korea has stood at the crossroads of East Asia, shaped by powerful neighbors but never defined by them. It has been home to ancient kingdoms, Buddhist temples, Confucian scholars, devastating inva ...  Show more

Tell me your favorite episode for the 6th anniversary show! You might have noticed that your television screen today is rectangular, but in the past, TV screens were more square. Yet, sometimes you might have seen black bars on either the top or the side of what you are watching. ...  Show more

Dr Becky Smethurst is an astrophysicist, author, YouTuber and a Junior Research Fellow at the University of Oxford. Black holes are the weirdest, densest, most mysterious objects in the universe. However they're not black, and they're not holes. In fact pretty much everything you ...  Show more

In 1908, on a sunny, clear, quiet morning in Siberia, witnesses recall seeing a blinding light streak across the sky, and then… the earth shook, a forest was flattened, fish were thrown from streams, and roofs were blown off houses. The “Tunguska event,” as it came to be known ...

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Michio Kaku is the Professor of Theoretical Physics in the City College of New York, a futurist and an author. What happened before the big bang? Is there a white hole on the other end of a black hole? Can time go backwards? Are there other dimensions? Are there other parallel un ...  Show more