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Investigate the Universe’s Unsolved Mysteries

Watch all 6 episodes of "Inexplicable Universe"
and get unlimited access to thousands more videos on fascinating and useful topics – all part of your free trial!

Watch all 6 episodes of "Inexplicable Universe" and get unlimited access to thousands more videos on fascinating and useful topics – all part of your free trial!

Inexplicable Universe Video

Understand Scientific Mysteries

Neil deGrasse Tyson takes you into the heart of some of science's greatest mysteries including string theory, multiple universes, extraterrestrial life, and much more!

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Course Overview

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Popular astrophysicist and Director of the Hayden Planetarium Neil deGrasse Tyson is renowned throughout the scientific community and the media for his vast knowledge, penetrating insights, and amazing ability to make even the most intimidating areas of science accessible and enjoyable. Now, with The Inexplicable Universe: Unsolved Mysteries, you can join him for an edge-of-your-seat journey to the frontiers of the known (and unknown) universe.

Each of these six highly visual episodes introduces you to profound questions being addressed by the world’s top scientists. You’ll learn about staggering concepts such as quantum foam, dark matter, and dark energy; contemplate traveling through a black hole; probe the existence of multiple universes; consider whether time travel is possible; and much, much more.

6 Episodes (31 Minutes Each)

  1. History’s Mysteries

    Take a closer look at mysteries of physics that were once unexplainable but, thanks to quantum physics, are now better understood.

  2. The Spooky Universe

    Delve into mind-warping physics concepts such as time dilation and quantum tunneling.

  3. Inexplicable Life

    Delve into mind-warping physics concepts such as time dilation and quantum tunneling.

  4. Inexplicable Physics

    Examine the periodic table of elements, subatomic particles, string theory, and black holes.

  5. Inexplicable Space

    Uncover two of the greatest mysteries in astrophysics—dark matter and dark energy—and map the shape of spacetime.

  6. Inexplicable Cosmology

    Explore truly exotic concepts like quantum foam, the multiverse, multiple dimensions, and the likely fate of the universe.

Neil deGrasse Tyson

Neil deGrasse Tyson, Ph.D.

Frederick P. Rose Director of the Hayden Planetarium

Dr. Neil deGrasse Tyson is the Frederick P. Rose Director of the Hayden Planetarium at the American Museum of Natural History in New York. He is also a research associate in the Department of Astrophysics at the museum. Professor Tyson earned his undergraduate degree in Physics from Harvard University and his Ph.D. in Astrophysics from Columbia University.

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Also by this Professor

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Instant, on-demand streaming of 6 half-hour physics lessons, taught by Neil deGrasse Tyson, will take you deep into hidden layers of the universe in a manner that is both thorough and easy to grasp.

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The Seeker
November 29, 2014

It was not only informative, well laid out, easily comprehensible, but also very enjoyable. I absolutely loved it. When you completely forget yourself watching it and don't notice the passing of time, then you are really enjoying the subject and that's because this is a masterpiece. Thanks so much Dr. Tyson.

Sacramento, CA
May 11, 2014

With style and flair, Dr. Tyson presents some fascinating mysteries of the universe much like his childhood idol, the late great Dr. Carl Sagan. As has become his trademark, Dr. Tyson makes liberal use of high-tech imagery and special effects. His goal is to bring the wonders of the cosmos to the lay audience, which he succeeds in doing.

This is not a comprehensive course on cosmology, astronomy or physics. The course simply highlights some unexplained (or mysterious but explained) phenomena of the universe. The non-scientist will find these fascinating. The scientist who may already be familiar with the concepts will still enjoy the vivid images and computer simulations and may still learn a few new things. I have a Ph.D. in physics, yet the "Pioneer (spacecraft) problem" was new to me.

Port Richey, FL
July 21, 2013

I watched this course yesterday and watched the lectures straight through. It was a very compelling experience. It has been a long time since I studied physics and other sciences in high school. My scholarly pursuits took a different direction, so this was a dynamic, eye opening experience for me.

I really enjoyed The Great Courses presentation and Dr. Tyson's measured cadence as he deliberated upon the science as we know it and, more important, how much more there is yet to discover. Now he will have me lying awake at night pondering these questions.