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.
Incredible! These TVs from the Future Will Blow Your Mind!
Television companies are nothing if they're not ambitious. Have a look at 5 of the most advanced forms of TV technology that we can't wait to see in action!
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.
Take an Interactive Tour of Our Colossal Milky Way Galaxy
Fly Through the Milky Way Galaxy!
39:01
What's so Exciting About James Webb Space Telescope?
Why the new James Webb space telescope is much, much better than Hubble.
29:21
Do You Want to See How the Universe Ends?
Take a huge journey in time with us, rushing ahead billions and trillions of years to when the universe will die.
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.
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.
These Are the Miracles That Happen in Our Bodies Every Day
There is a lot that happens inside our bodies every single day. Did you know any of these facts?
7 Little-Known Body Parts We Never Knew About
Here's a look at some of the weird and little-known body parts that you didn’t know you had.
10 Nifty Tips and Tricks For Using Your Smartphone
Smartphones are so powerful, and that's why you might like know some of its functions. Here is a guide for things you can do on iPhones and Android Phones.
2:01
What Does the Appendix Actually DO?
Dr. Berg explains, in this video, all about the appendix and what it actually does in our body.
Meta Unveils New Glasses that May Change Sports Forever
META has revealed a new line of AI-powered smart glasses: Oakley Meta HSTN
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.
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
25 Pics Showing How People in the Past Imagined the Future
Let’s see how the people of the past imagined the future and find out if their fun predictions came true with these 25 vintage pictures
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.
Phone Overheating? Use Our Guide to End The Problem!
Is your cell phone overheating? If so, read this handy guide, which will help pinpoint the source of the problem and offer a solution for fixing 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!
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?
A Quantum Leap? Revolutionary Technique Discovered
Scientists at Singapore University have developed a groundbreaking manufacturing method powered by artificial intelligence that may revolutionize how we understand and create quantum materials at the atomic level.
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.
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.
There are Some Great Secrets Found in Mathematics...
Numbers hold some great secrets - they even tell us about life!
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.
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.
7:00
How To Be Sure Your Dog Adores You
10 scientific ways to know if your dog loves you
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.
14:13
Physics Explained Simply: From 0 to 7 Dimensions
Using physics, geometry, and Flatland-style experiments, discover why our universe is stranger than it appears - and why our brains struggle to see it.
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.
Earth Is So Incredible: I Was Stunned by These 50 Facts
Here's a post that will explain to you just what's truly, scientifically amazing about our planet Earth. I'm gobsmacked.
8:11
Fascinating: What is the Deepest Hole Humanity Has Dug?
This video explains how low humanity has dug down so far.
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.
4:05
Kirobo: First Robot in Space!
It was one small step for robot and another giant leap for mankind...
19:39
Lecture: What is the Future of Humanoid Robots?
Get ready to meet the humanoid partners that will redefine how we live and work.
7:15
Toilets: The Greatest Medical Advancement in Human History
While toilets make some people laugh, they are actually a deadly serious medical advancement. This video explains what toilets mean to civilization.
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.
Satisfy Your Curiosity About the Universe with These Q&As
Discover more about the universe by reading through these facts.
10:30
China's Crazy Plan to Dig a Canal in the Middle of EUROPE
China is setting out a plan to dig a canal through the middle of Europe in the nearest future, but why?
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.
Will We Ever Solve Our Universe's Most Complex Mysteries?
Here are 8 of the biggest unsolved mysteries from the world of physics.
The Tiny Antarctic Flower That Could Help Feed the World
This modest little plant, known as the Antarctic pearlwort, has just handed scientists something remarkable: a genetic blueprint that may one day help our crops survive a warming, drying world.
New Study: Dopamine Does Way More Than We Thought!
How the brain's reward system physically rewires the motor cortex during skill learning — and what happens when that reward signal gets cut off.
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!
4:01
What Lies Within the Planet's Deepest Hole? Find Out Here
Learn all about Russia's Kola Superdeep Borehole, which at a depth of around 12km, makes it the deepest hole that mankind has ever dug into our planet.
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...
5:17
How Exactly Do We Hear? All is Revealed Here!
In this informative TED-Ed video, Douglas L. Oliver explains the complete science behind hearing.
8 Biggest Mysteries Still Surrounding the Human Body
Although modern science has revealed much about the human body, there are some things that still remain unknown. Here are the 8 biggest mysteries about it.
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