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.
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.
5:06
The Only Manmade Object That Will Last Forever
This copper discus contains 116 images we launched into space for aliens to see
Take an Interactive Tour of Our Colossal Milky Way Galaxy
Fly Through the Milky Way Galaxy!
Test Your Knowledge of Our Solar Neighborhood!
This quiz will put your knowledge of our solar system to the test!
2:17:01
Astronomy: What is Beyond the Edge of the Universe?
In this video, we explore what modern astronomy reveals about the universe’s boundaries—if they even exist.
11:15
These Paradoxes Continue to Mystify Scientists
Take a look at 7 scientific paradoxes that may never get solved.
4:51
Watch These Chinese Robots Amaze the World
In this video, you're going to see just how far these robots can go, as they've been programmed with some truly amazing dance moves,
Are You Ready to Learn About the Expanse of the Universe?
If you have an interest in the unknown, then look no further than these 15 unbelievably facts discovered about space
24:11
25 Game-Changing Megaprojects That Will Change Our World
These incredible megaprojects that are set to redefine our world in 2025.
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.
5:50
Why Do We Sometimes Hallucinate? Find Out Here!
In this informative TED-Ed video, Elizabeth Cox details the science of hallucinations.
1:14:42
Documentary: How Did Our Universe Come From Nothing?
Can “nothing” truly become “something”? In this video, we’ll dig into this mind-bending question.
2:06
Can Your Brain Get to Grips with These Weird Illusions?
I could have sworn what I was seeing in this video was real! But it wasn't. It was all just an illusion.
5:39
Why Are Your Ears Ringing? The Causes Explained
Nearly 15% of the human population worldwide are plagued by this strange sensation, but most people don't know the causes behind ringing in the ears...
4:51
The Oldest Medicines That Have Stood the Test of Time
Learn about some fascinating old medicine and general healing practices that have survived for thousands of years.
10:46
Neat Life Hacks To Help You Remember Things Better
A lot of us tend to forget the simplest things at times. This video provides some neat tips to help boost your memory.
4:57
Mjøstårnet - The World’s First Wooden Skyscraper
Mjøstårnet is an 18 story tall skyscraper towering over the Norwegian countryside. What makes it so special is that it's made entirely out of wood...
13 Forgotten Phone Designs That Were Too Odd to Survive
From pen-shaped dialers to phones that clipped onto your clothes, here’s a look at the most unusual phones ever made.
16:31
Why Building a Perpetual Motion Machine Is Impossible
Since the Middle Ages, scholars have been trying to build the mythical perpetual motion machine. Was it all in vain? Is it even possible to build such a machine?
TRIVIA: 25 Shocking Differences Between the Sexes
Did you know that there are some vast differences between the sexes? These 25 scientific facts will probably come as a big surprise to you, they did to me.
27:25
This Man Gave ChatGPT a Body. This is What Happened.
What if you could build a robot that learns everything from scratch, for just eighty dollars?
How AI Is Fixing Problems Humans Struggle With
Here’s how AI is quietly reshaping the world in ways that actually matter.
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.
6:47
7 Exciting Physics Tricks You Have to See!
Watch these seven remarkable physics tricks in this exciting and fun video.
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...
18:21
Fascinating: How Do Cats TRULY See Humans?
Understanding a cat's world is the key to strengthening your bond. Let's decode your cat's mind!
9 of the Greatest Unsolved Mysteries About the Universe!
The universe has been around for close to 14 billion years, but it still holds many mysteries that continue to perplex scientists. Here's 9 of them!
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!
Travel From the Sun to Pluto With Our Interactive Guide!
The solar system is a fascinating place, and we wanted to bring you an interactive journey that you can use to travel through it. Enjoy the journey!
10:50
Remarkable! This Is How the Universe Developed...
Watch this time lapse of the entire universe - starting with the big bang and culminating in the appearance of homo sapiens.
13:41
The 5 Most Important Fossil Discoveries from Last Year
2024 saw some really amazing fossil discoveries!
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.
What is the Troxler Effect and How Does it Affect You?
Learn about Troxler's effect and the optical illusions it creates in life.
Blood Test Breakthrough Transforms Leukemia Diagnosis
This research demonstrates that rare circulating stem cells in blood carry the same diagnostic information as bone marrow samples, enabling doctors to identify disease progression months before clinical symptoms appear.
20 Incredible Inventions That We Have Completely Lost
Here are some of the most amazing ideas and inventions we have ever seen. But, sadly, all of them have been lost to science in the mysterious mists of history.
5:56
What on Earth Is a Black Hole? This Video Explains All...
What on Earth are black holes, how do they affect us, and should we be at all worried about their existence? Find out here.
4:49
This Video Shows You a Different Way to Look at the World
You’ve heard of the fourth dimension but do you know what it is? This TED-Ed video helps uncover a bit of the mystery.
1:08
Boston Dynamics New Robot Can Move Almost Like a Human
Watch the latest in robotics in this video.
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...
10:59
Fascinating Science: How Sand is Turned Into Glass
Have you ever looked through a window and wondered how it was made from simple beach sand? This video shows you that incredible process.
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.
Science Proves: These 10 Bible Stories Probably Did Happen
The Bible describes many seemingly supernatural cases, but today, science can show that they might have indeed happened.
Find Out How Some Elderly People Stay Sharp into Old Age
Some old people have better memories than people half their age. This could be the reason why...
Meta Unveils New Glasses that May Change Sports Forever
META has revealed a new line of AI-powered smart glasses: Oakley Meta HSTN
Is Microsoft's "AI Doctor" Better Than a Real Doctor?
A new study presents a committee of digital doctors achieving approximately 80% accuracy in complex medical diagnoses – far beyond the average of general practitioners.
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