Astrophysics with Neil DeGrasse Tyson | Dark Matter, Particle Physics, & Cosmic Science

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Professor Neil deGrasse Tyson will guide you through the mysteries of the universe in this fascinating course. Everything we now know about the universe—from the behavior of quarks to the birth of entire galaxies—has stemmed from scientists who’ve been willing to ponder the unanswerable.

00:00 Scientific Breakthroughs Come From Small Observations
02:42 Understanding the Pioneer Anomaly
09:51 Dark Matter Found in Galaxy Clusters and Galaxies
13:07 The Dark Matter Problem Persists To This Day
15:22 Einstein´s Greatest Blunder That Wasn´t
19:28 How Physics Is Ignorant of the Universe
21:55 The Zero Net Total Energy of the Universe
26:45 The Collision of Andromeda and the Milky Way

So what is our latest picture of some of the most inexplicable features of the universe? What still remains to be uncovered? What are some of the next avenues of exploration for today’s chemists, physicists, biologists, and astronomers?

“We know a lot about the universe. But there’s even more that we don’t know,” says astrophysicist and Professor Neil deGrasse Tyson, director of the Hayden Planetarium, an award-winning lecturer, and one of the world’s foremost experts on the secrets of the cosmos.

And Neil deGrasse Tyson’s course “The Inexplicable Universe: Unsolved Mysteries” is the perfect gateway into the mind-bending world of astrophysics.

Pondering the answers to these and other questions about astrophysics is a great way to appreciate the grandeur and complexity of the cosmos, better understand and discuss news and developments in science, and spark further interest in the universe.

This visually stunning course, which has been honored with a 2013 Telly Award for Outstanding Educational Program, features six self-contained lectures that transport you on a marvelous journey to the frontiers of the known (and unknown) universe and introduce you to tantalizing questions being addressed by the world’s top scientists.

Undeniably engaging and fascinating, this lecture series is a wonderful entrée to scientific pursuits that lie at the very heart of the history and nature of our universe.

In this Free Lecture: Scientists have made astounding progress in their grasp of the universe. But what remains to be understood? Investigate some perplexing aspects of space that science has uncovered in the last half-century. Learn about the mysterious trajectory of the Pioneer spacecraft (known as the “Pioneer anomaly”). Explore two of the longest-standing problems in astrophysics: dark matter and dark energy. And even try to map the shape of space-time.

[maryon-vjrm]

This is one of the moments I really thank myself for studying english for years to be fluent. What a treasure is to understand this man's direct words

[VuNguyen-mhoo]

Mr. Tyson articulates very well and with an honest, sincere tone of voice, he captures his audience's hearts. Great science communicator.

[joanrucker]

This man has a way of explaining things in such a way to me that I deeply care and become passionate about whatever subject he is speaking of!!

[trebell]

Please for give me for my child like questions! I'm only 57yrs? I've only been listening to this guy only 7yrs?? Love it.
I'm not as reckless now! Thanx Neil!!! Lovyabruz☢️🌻🌴☘️☮️

[aaronequinoa]

Craziest thing is this was uploaded a few years ago probably produced in last decade and now we understand this pioneer anomaly as just heat loss causing it to slow down a tiny bit extra. How fascinating that we can figure out stuff of this nature all while sitting here on earth billions of miles from all crafts that have journeys beyond the solar system.

[TheSpookiestgoose]

Neal always has crazy ties lol, it’s great

[mitsos]

With my average English I didn't miss a single word in a scientific video. This is an accomplishment by itself. Grats Dr Tyson!

[amedeofilippi]

In my opinion the book : “ Einstein’s universe without Big Bang “ by C. Poth gives good answers to all of above mysteries.

[yourdailyperson]

Im not good at math at all, but I always wanted to work in the field of astrophysics, but it just looked so hard that I just said to my self, "I guess I won't be a astrophysicist", but now I'm not giving up on my dream anymore (edit) i gave up on my DREAM

[ea_x_ea]

Another outstanding video by Mr. Tyson. Thank you for posting.

[anastatianeromanijournalis]

Thank you for your time and consideration in this matter

[GauravRaghav]

brilliant and clear introduction of the problem dr neil

[MrRynRules]

Thank you sir, I really appreciate how you explained it.

[chiefsampson]

Fantastic video! Incredible topics discussed by a superb host!

[terrencekohl]

Has any research been done on dark matter being normal matter in a higher dimension? Gravity traverses dimensions so this is a feasible theory. An exotic partical seems more far fetched than it just being normal matter in a different dimension.

[zaddy]

About the milky way and andromeda collision, the universe is just playing beyblades with us

[pruephillip]

Quote on Wikipedia's "Pioneer Anomaly"
"The most detailed analysis to date, by some of the original investigators, explicitly looks at two methods of estimating thermal forces, then states "We find no statistically significant difference between the two estimates and conclude that once the thermal recoil force is properly accounted for, no anomalous acceleration remains."[4]

[dmar]

south Carolina says Neil is the man" :)

[jamescurran]

I love his body language in this series. Just looks totally unscripted.

[cicad]

I hope you cover the repeating novae in RS Ophiuchi.