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.
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.
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.
Whoa! I Can't Believe Technology Has Gone So Far...
From vending machines that dispense cars to mind-reading sleep devices, these complex inventions will blow any tech-enthusiast away!
42:14
Physicist Michio Kaku: The Universe in a Nutshell...
Physicist Michio Kaku explains the fundamental nature of our universe
Test Your Knowledge of Our Solar Neighborhood!
This quiz will put your knowledge of our solar system to the test!
46:50
Deep Science: Why is Our Universe the Way It is?
Get ready to understand the Universe like never before...
14 Retro Inventions That Stunned Crowds Back in the Day
These inventions were the talk of the town back in the day.
3:28
Did You Know That Batteries and Magnets Can Make Magic?
Here are some cool magic tricks you can try at home using only a few magnets, batteries and other household items. Watch carefully as the magician puts together a completely self-reliant motor
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.
5:03
WHY is Sugar So Devilishy Addictive?
There seems to be a fascinating scientific explanation for why our will power is weak when it comes to sugar!
25 Feats of Engineering that Leave Everyone Amazed
The amount of planning and sheer brain power it took to design and execute these structures, proving once again that there are true geniuses out there.
13:01
Understanding the Aging Process of Our Body Parts
Find out how every organ and body part in our body changes with age.
INTERACTIVE: A Guide to the Workings of the Human Body
The human body is the most complex machine known to man, and the amount of things it has to do to keep us alive is incredible. View this interactive guide now.
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.
9 Women Inventors Who Have Been Overlooked by History
History has overlooked many great women inventors. Here’s your chance to get to know a few of them.
4:19
The First Robot Ever Made Was Created 250 Years Ago...
This automaton is pure genius, especially when you consider it was built 250 years ago...
These Photos Show How Dependent We are On Smartphones
Technology has taken over and these funny (but true) photos help to drive this fact home.
10 New Things We've Learned About The Brain
We have learned some astonishing new things about the human brain in recent times.
Incredible New Bionic Arm Fuses With Woman's Nerves
Karin's bionic hand is real sci fi, making her one of the first true cyborgs.
8 Fascinating Heartbeat Facts You Never Knew Before
These heartbeat facts will leave you astounded.
15:41
Keep Your Home Safe with These Handy Gadgets
These 13 devices will transform your home security.
8:10
Taller Doesn't Mean Bigger - the True Size of Skyscrapers
If you were to compare skyscrapers by area rather than height, which skyscraper would end up on top?
There are Some Great Secrets Found in Mathematics...
Numbers hold some great secrets - they even tell us about life!
7:21
Science: 20 Mechanical Principles Demonstrated Using Lego
In this video, we'll explore a variety of fascinating mechanical mechanisms, all demonstrated using Lego models.
1:29
A Must See: White Cells Devouring Bad Bacteria!
A real look at how white cells identify and consume harmful bacteria.
15:30
Experts Are Still Baffled by These Ancient Artifacts
These mysterious relics have left experts puzzled.
16:55
Sleep Inventions: 16 Gadgets to Help You Doze Off
If you frequently struggle with sleep, then trying these amazing new sleep innovations could help change your life.
9:31
The Channel Tunnel - The 7th Wonder of the Modern World!
The construction of the Channel Tunnel is said to be an impossible feat!
6 Remarkable Yet Overlooked Minds That Shaped Our World
These underappreciated geniuses deserve more recognition.
13:55
The Disappearing Computer: Revolution on a Personal Scale
What happens when we lose the physical large computer all together? This lecture explains what ahead for computers.
9:34
Was Roman Concrete Really Superior to Our Own?
How did Ancient Romans make such durable concrete that it still lasts today?
13:21
The Race to Complete the World's Second-Tallest Skyscraper
Malaysia is all set to unveil the world’s second tallest skyscraper.
20 Amazingly Simple Inventions That Make Life Easier
Some wonderful inventions can fix some of the most annoying little problems that bug us every single day. Here are 20 of the most inventive ideas I've ever seen that I can't believe no one has invented before.
Chocolate Exposed! Here's What It Does to Your Brain!
Just what is it that makes chocolate so irresistible to so many people around the world? Find all of the answers in the article.
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.
5:48
3 Surefire Ways to Always Identify Pseudoscience
Find out how you can identify pseudoscience, and learn how it differs from actual science.
20 Fascinating Things That Can Be Found in the World
These pictures show us 20 fascinating and absolutely astounding things, from a single mountain with 1000 waterfalls to a giant ant!
8:28
Could These Signals Be A Sign of Extraterrestrial Life?
Scientists have recently picked up on a mysterious radio signal from space, and it could mean a lot - maybe even a sign from extraterrestrial life forms.
3:10
Watch the Best HD Panorama Photo of Mars Ever Taken
Watch an incredible 1.8-Billion-Pixel panorama of the planet Mars that was recently captured by NASA's Curiosity rover.
Is It 3024 Already?! – 14 Wildly Futuristic Things
These revolutionary ideas are about to change our world.
4:40
Breathalyzers May Be More Important Than You Thought
This video does a great job in breaking down how in the future, breath analysis can be used to detect disease and prevent more invasive procedures.
When Under a Microscope, Even Ordinary Things Seem Alien
Have you ever given any thought to what every day things look like under a microscope? Some of these images are truly beautiful - see for yourself in the images below.
INTERACTIVE: How Personal Items Have Changed Over Time
Some of you will be old enough to remember what many of today's objects used to look like. Here are 20 such objects. Click to see them as they used to be.
Amazing Science: THIS is the True Scale of Our Universe...
Get a sense of the true scale and shape of the universe we've discovered so far.
21:07
15 Frightening Animals Early Humans Had to Live With
10 scary animals early cavemen in Africa had to deal with 200,000 years ago.
Guide: All About the Gut-Brain Connection in Your Body
it's becoming increasingly clear just how influential our tiny gut microbes are in shaping our mood and even our overall health.
Study: New Link Found Between Parkinson's and the Gut
A recent study has identified gut microbes likely involved and linked them to decreased riboflavin (vitamin B2) and biotin (vitamin B7), suggesting a potential treatment
