I don't know about you, but I'm an individual that has always been fascinated by the big questions in life, such as what happens to us when we die, or what time actually is. That's why it's always a good day for me when I come across a documentary that goes a long way toward formulating reasonable answers to those questions. To celebrate the beauty of our world and the vastness of our universe, I've made a collection of the finest "big question" documentaries just for you.
To watch a documentary, just left-click on any of the photos below with your mouse. If you want to watch another, just click on the 
button in the upper right corner of the video. If you wish to view the documentary in full size, the full screen button is located on the bottom right of the video player. Happy viewing!
Images (including cover) by Deposit Photos.
9:58
Would You Live On the Moon? Discover the Possibilities...
Did you know that the human race actually has the cash and resources available to start building a base on the moon today? Find out more here.
42:14
Physicist Michio Kaku: The Universe in a Nutshell...
Physicist Michio Kaku explains the fundamental nature of our universe
21:51
What Will the Universe Look Like in 10 Quintillion Years?
These questions take us beyond science into the realm of imagination, as we contemplate the ultimate fate of our Universe and everything within it.
46:50
Deep Science: Why is Our Universe the Way It is?
Get ready to understand the Universe like never before...
4:47
THIS is the True Shape of the Universe...
Find out why the vast majority of the universe we inhabit is made up of empty space in this informative and well-researched video.
Take an Interactive Tour of Our Colossal Milky Way Galaxy
Fly Through the Milky Way Galaxy!
21:25
How Every Nuclear Power Got Its Atomics
This video will explain how each nation earned the complex and controversial title of nuclear power.
5:16
How The Brooklyn Bridge Narrowly Escaped Never Being Built
Learn about the fascinating, but equally tragic history of the construction of Brooklyn Bridge in this engaging and educational video
9:03
24 Unbelievable Abilities Your Body Has
The human body is a complex and endlessly fascinating machine, and it might be even more sophisticated than you know...
2:03:03
Full Documentary: From First to Last Dinosaur
With stunning visuals and cutting-edge science, we’ll bring their story to life—from their very first day to their last, a saga of survival, adaptation, and mystery.
I Never Knew These Stunning Facts About Our Universe
If you thought you understood the universe, you'll be completely floored by this insane facts.
1:17
The Age of the Affordable Android Robots is Here...
Meet the Unitree R1 – the game-changing humanoid robot that just shattered every price expectation in robotics.
22:35
Neuralink Update 2025: The Most Incredible Moments
Welcome to our 2025 Neuralink update, where we’ll take you through the most incredible and groundbreaking moments from the past year.
12:34
The World You See Doesn't Really Exist...
his video reveals how your brain constructs reality instead of simply perceiving it.
10:46
12 SUPER COOL Military Inventions You’ve Never Seen
Check out this list of amazing new military innovations. They will transform warfare in the near future!
Science History: 17 Math Equations that Changed the World
In this article, we'll journey through 17 of these monumental formulas, demystifying the symbols to reveal the revolutionary ideas they contain and the immense impact they have had on the course of history.
22:52
Will AI Take Your Jobs? An Expert Explains the Future
Gonzaga University's AI professor Graham Morehead some of our most pertinent questions related to AI.
14:21
Mark Rober’s $60 Million Science Experiment
YouTube’s favorite mad scientist is launching his biggest mission yet: a $60 million reimagining of STEM education
20 Useful Facts About the Science of Cooking
The science behind cooking is not often thought of, but it plays a crucial role in a dish turning out right. Here are 20 facts on the science of cooking.
The 10 Most Elaborate Scientific Hoaxes In History!
Some hoaxes throughout history have been so believable, they managed to fool the entire world. Here are 10 of the most elaborate scientific hoaxes in history.
18:14
Are These Vintage Kitchen Gadgets Any Good?
Will any of the vintage kitchen gadgets stand the test of time or outperform their contemporary alternatives?
4:13
What Does Medicine ACTUALLY Do In the Body? Fascinating.
What really happens in our bodies when we take medicine, have you ever wondered? This video will answer your question.
0:55
China's G1 Robot is Showing Some Incredible Moves
The G1 is a new robot developed in China and in this video shows some amazing moves.
9:09
Protective Measures: How Our Body Reacts to a Tattoo
In this video, we’ll explore the microscopic war raging beneath your skin, where millions of your cells make the ultimate sacrifice to lock that ink in place, turning a defense mechanism into lifelong art.
Enjoy This Fascinating Collection of NASA's Best Photos!
Here are 15 of NASA's most amazing recent pictures, along with brief explanations of exactly what is going on in each one.
This New Blood Pressure Drug Could Be a Game-Changer
Zilebesiran, an investigational drug that is showing profound success in late-stage clinical trials is offering hope for millions who struggle to keep their blood pressure in check.
16 Interesting Things We Bet You've Never Seen Before
Once we have finished school and learned all the necessary skills at work, it may seem that no further studying is necessary. 16 interesting photos you wish you had seen in textbooks at school.
Study Shows Seniors Still Grow New Brain Cells Daily
A new study shows that even the elderly keep on growing new brain cells, which could be the breakthrough the scientific community was waiting for...
11:02
Ever Wonder What Ancient Egyptian Sounded Like?
Researchers have used all the information we know to create what they think it may have sounded like.
11:15
These Paradoxes Continue to Mystify Scientists
Take a look at 7 scientific paradoxes that may never get solved.
17 Incredible Eye Facts You Have To See To Believe
They say the eyes are the window to the soul, and they also happen to be our windows to the world. Here are 17 insanely fascinating facts about eyes.
What is the Troxler Effect and How Does it Affect You?
Learn about Troxler's effect and the optical illusions it creates in life.
These Ancient Inventions Have Got Scientists Stumped!
Here are 12 items from long ago which prove that our ancestors possessed knowledge and skills far more advanced than we once believed them to be.
These Optical Illusions Will Shock Your Mind!
Optical illusions create miscommunication between our eyes and brain making, us see things that are not really there or not see things that are right in front of us. See for yourself.
I Bet You Didn't Have a Clue About These Human Body Facts!
The human body is the most complex machine known to mankind, but I bet you don't know these 10 amazing facts about it...
4:57
Fascinating: How Does Our Digestive System Work?
This video explains how the human digestive system does its daily.
7:56
These 6 Chemical Reactions Changed the Course of History
Although we rarely pay much attention to the chemistry that constantly surrounds us, these 6 reactions changed history.
5 Puzzling Mysteries That Science Finally Managed to Solve
These weird occurrences have puzzled humanity for decades, if not centuries. Finally, scientists solved them & the solutions are exciting...
Enjoy This Fascinating Collection of NASA's Best Photos
Here are 15 of NASA's most amazing recent pictures, along with brief explanations of exactly what is going on in each one.
Superwood: A New Material That Could Replace Steel
After decades of relying on steel—a material that produces nearly two tons of CO2 for every ton manufactured—builders may soon have access to something far more sustainable and surprisingly stronger: Superwood.
Anti-Aging Science in 2026: What's Real and What's Hype?
Here's an honest look at where anti-aging medicine stands in 2026 - the promising, the disappointing, and the surprisingly simple things that still beat almost everything in a pill bottle.
Could This Popular Ingredient Be a Cause of Cancer?
The chemical triclosan began to appear in a multitude of products in the early 1970s. This ingredient, found in a multitude of products has been linked to cancer.
NVIDIA CEO Reveals Which Degree Is Worth Studying
Electrical Engineering, Computer Science, or Physics? Nvidia's CEO has a surprising answer to which area should be studied nowdays.
7 Air Pollution Solutions That Will Help Us Breathe Easy
Let's take a look at some global initiatives that have been launched to reduce air pollution levels.
Science FIRST: A Fully Created Brain Inside a Computer?
Could a Computer Ever "Run" a Human Brain? Scientists Just Took a Big Step
12 Earliest Versions of Tech Inventions We Use Every Day
Witness the evolution of 11 popular devices we use all the time by looking at how they all started...
17:03
What is a Ballistic Missile and is Its Purpose?
Why is the ballistic missile so feared, and what exactly qualifies it as such - will all be explained in this informative video.
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