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.
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.
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.
42:14
Physicist Michio Kaku: The Universe in a Nutshell...
Physicist Michio Kaku explains the fundamental nature of our universe
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.
Test Your Knowledge of Our Solar Neighborhood!
This quiz will put your knowledge of our solar system to the test!
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.
Whoa! Who Knew the Human Body Was Capable of So Much?
Have a look at these 17 intriguing facts about the human body that we can practically guarantee will leave you in awe.
Meta Unveils New Glasses that May Change Sports Forever
META has revealed a new line of AI-powered smart glasses: Oakley Meta HSTN
This is How to Activate Your Brain's Ability to Learn
A recent study has shown that overlearning might improve performance in a particular task by altering the chemicals in the brain that "lock" in training.
Satisfy Your Curiosity About the Universe with These Q&As
Discover more about the universe by reading through these facts.
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
8:12
How Humans Helped Cats Take Over the World
The relationship between humans and cats goes back as far as 9,500 years. How did it al start? And how did humans help cats essentially take over the world?
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.
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?
Why It's So Hard to Get People to Change Their Stance
You feel that your knowledge is broader because you've read and researched a lot on the topic, but the other side still isn't convinced, even when you present facts and statistics. Why isn't that enough?
Will We Ever Solve Our Universe's Most Complex Mysteries?
Here are 8 of the biggest unsolved mysteries from the world of physics.
10:19
What a Bullet Blast Looks Like Underwater!
The slow motion kings are back with incredible effects.
8:02
The State of Robotics Today: Should We Be Worried?
The mass production of androids era is officially here. A brand new factory line just powered up to churn out 10,000 humanoid robots a year, and the competition is heating up fast.
The Wildest Meteorites Ever Found on Our Planet - 15 Pics
Check out 15 of the most fascinating meteorites ever found on earth.
The Newest Innovations in Brain Surgery and the Near Future
Here is a clear, friendly look at the most exciting recent breakthroughs, followed by what experts expect in the decade ahead.
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.
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.
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!
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.
Remembering the Life and Wisdom of Stephen Hawking
Stephen Hawking possessed one of the greatest minds the world has ever seen, but was also impaired by a debilitating disease. Here are his life ant times.
21:24
James Webb Telescope: Redefining Our View of Space
Here's a brief look at all the amazing discoveries made by the James Webb Space Telescope so far.
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...
The First Valentine's Day Was Not That Long Ago...
Let us take you on a fun history lesson with these 10 first-ever things that started way back in history and remain to this day.
5:14
Earth 2125: A Vision of the Future of Our Planet
Exploring what Earth could look like in 2125 reveals exciting potential.
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.
Six Inventions Da-Vinci Made Ahead of Their Time
He created and envisioned many inventions that were sometimes even centuries ahead of their time. Was there ever a genius as great as Da-Vinci?
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...
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...
What Your Phone Habits Say About Your Mental Health
These phone habits might indicate underlying anxiety—and paying attention to them could help you better understand your mental health.
12:34
The World You See Doesn't Really Exist...
his video reveals how your brain constructs reality instead of simply perceiving it.
Science Lesson: 10 Fiery Facts About the Sun You Must Know
Learn some fascinating and little-known facts about the Sun in this article.
5:28
Just How Small is an Atom? - Fascinating!
Just how small are atoms? And what's inside them? The answers turn out to be astounding...
58:37
Science: Here's Everything We Know About Pluto
Join us as we unravel the mysteries of far off Pluto, 3.7 billion miles from our Sun.
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.
13 Astonishing Things You Never Thought You'd See
Here are 13 photos of rare phenomena you never thought you'd see!
Explore the Most Bizarre Planets We've Discovered So Far
The search for stars, planets, and extraterrestrial life has led to quite a number of extraordinary discoveries, and here are 10 of the strangest!
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...
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.
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 Fascinating Psychological Facts You Should Know About
Psychology is the science of studying the individual and the things that make us, as humans, tick. These 10 psychological facts you've never heard of before will make for fascinating reading material.
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.
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