MEMBER REVIEW: This 2018 Nova production has great graphics and lots of scientists talking about black holes. A black hole is the remnant of the collapse of a supermassive star. Gravity is so strong that nothing can escape, not even light. In a LIGO laboratory, gravity waves are measured that proves two massive black holes have merged somewhere in the universe, a very long time ago. Explaining gravity and how it works, and how stars die and what happens with the 'corpse' is the main thrust of this video. It is a good quick course in astrophysics. It is particularly relevant now because they have gotten the first "pictures" of a black hole. The 2-hour video gets into the details and history of black holes, and how they helped make our universe. DESCRIPTION: Black holes are the most enigmatic, mysterious, and exotic objects in the universe. They're also the most powerful, with gravity so strong it can actually capture light. And they're the most destructive, swallowing dust, gas, planets, even giant stars. Anything that falls into them vanishes… Gone forever. But now, astrophysicists are realizing that black holes are essential to understanding how our universe unfolded - maybe to explaining our very existence. In this 2-hour special, astrophysicist and novelist Janna Levin takes viewers on a journey to the frontiers of black hole science. Along the way, we meet leading astronomers and physicists on the edge of finding new answers to provocative questions about these shadowy monsters: Where do they come from? What's inside them? What happens if you fall into one? And what can they tell us about the nature of space, time, and gravity?