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.
2:39
Science Lesson: Why is Space Black?
This video will explain why exactly space is the color it is - black.
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!
4:15
Where Will the Exploration of Mars Lead Us? Find Out Here
This detailed documentary explains exactly what we know about Mars so far, and what we're all expecting to find in the years to follow.
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.
Discover the Biggest Science & Tech Breakthroughs of 2017
Explore six of the most fascinating advances that will help shape humanity's future in many different ways.
11:53
These Cases Were Cold... Until Science Cracked Them
Technology and science aren't always about the future. Take a look at these cold cases that were solved only thanks to the advances of science.
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.
Learn Chemistry Easily with This Interactive Periodic Table
This interactive table of elements has video lectures about every element, including experiments
8:19
You Won't Believe What Passes for a Phone in North Korea
You won't believe what phones look like in North Korea!
The Most Remarkable Medical Breakthroughs of 2024
Here’s a look at some breakthroughs in medical innovation this year.
5:22
Why Do You See Colors When You Rub Your Eyes?
Explore the science of afterimages, the visual illusions that linger in your vision following exposure to bright lights or images.
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...
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?
PayPal Versus Credit Cards: Here's the Lowdown!
Just how safe is PayPal? Should you have a PayPal account or should you pay for all online purchases using a credit card? All is revealed here!
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.
5:50
Why Do We Sometimes Hallucinate? Find Out Here!
In this informative TED-Ed video, Elizabeth Cox details the science of hallucinations.
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.
The 12 Game-Changing Inventions From 2024 You Missed
2024 was a ground-breaking year in terms of innovation. Here's a look at some of the key breakthroughs from the year.
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.
15:41
Keep Your Home Safe with These Handy Gadgets
These 13 devices will transform your home security.
11:28
India Built a Monster Dam That Controls the Weather!
The Polavaram Dam doesn't just control floods - it moves water between regions and much more!
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.
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.
4:05
Kirobo: First Robot in Space!
It was one small step for robot and another giant leap for mankind...
36:24
Ever Wonder How a Steel Locomotor Works?
Let’s take a closer look at the engineering behind these compact workhorses.
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.
4:26
Despite Looking Similar, Cats Are MORE Diverse Than Dogs!
Who's more diverse, cats or dogs? This video answers this question once and for all, the it might surprise you...
5:14
Earth 2125: A Vision of the Future of Our Planet
Exploring what Earth could look like in 2125 reveals exciting potential.
11:43
Learn While Laughing: The Incredible Tardigrade
If you love nature and you love laughing, this incredible series of nature videos are a great way to spend a few minutes.
10:04
11 Practical Technologies That Will Help Fight Flooding
These amazing innovations will be real handy during a flood.
16:26
Neanderthals Had Strength and Skills Beyond Our Limits
Neanderthals possessed truly exceptional, almost unbelievable, traits.
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.
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.
2:11
Here are Some Unique Tricks You Can Do at Home With Salt!
This video shows us a few interesting magic tricks that you can do anytime using salt, ice, and other items you can find at home.
12 Bizarre Scientific Facts You Never Learned at School
The scientific facts we collected in this list aren't the kind of stuff you'll see in a school curriculum.
7 Discoveries of Albert Einstein that Changed the World
The 7 biggest discoveries of Albert Einstein and how they changed the world forever.
5:47
This Genius Child is a Better Calculator than a Computer
This ‘human calculator’ could likely outpace you entering the numbers into a calculator.
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.
14:58
Why IS Fentanyl So Dangerously Addictive?
In this video, we break down what opioids really do to your brain and body, what using them actually feels like, and why so many people are dying from Fentanyl overdoses.
Nobody Believed These 5 Scientists, But They Were Right
These 5 scientists were shamed and ousted, or rudely ignored, although years later, their "crazy" theories turned out to be true...
World-Famous Psychological Experiments That Shocked Us
The human mind is a most intricate thing. It also has some quirks and idiosyncrasies that are both incredible and a little uncomfortable. Read on for more.
Extraordinary Inventions By Tesla That Were Never Built!
Nikola Tesla was a scientist too advanced for his time. Here are some of the inventions he never had a chance to build.
These Materials are Strange Enough to Boggle Your Mind...
There are some materials in this world that totally defy scientific convention. From metals that melt in your hand, to a solid lighter than air, take a look.
6:25
Do You Like the Smell of Rain? This Is Why
One of the best things about rain and thunderstorms is that clean fresh smell afterward. But what actually causes that distinct scent?
8 Important Inventions That Were a Complete Accident
It might be interesting for you to learn that some very important scientific innovations were born as a result of an accident.
These Underwater Craft Are Changing Marine Science
Here's a look at the most remarkable machines currently expanding our understanding of the underwater world.
6 Signs That Someone is Listening on Your Cellphone Calls!
With technology advancing all the time, there is the ever-increasing chance of our phones being tapped. Here are 6 signs that your phone could be tapped.
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