Kurzgesagt - In a Nutshell Season 2 Episode release dates & where to watch

1. Three Ways to Destroy the Universe

How will the Universe die?

2. The Beginning of Everything — The Big Bang

How did everything get started?

3. Who Invented the Internet? And Why?

Nuclear war, cat gifs and reddit? Wait, what?

4. How Big Is the Moon? (MM#1)

The Moon might be much bigger than you think it is.

5. The Moons of Mars Explained — Phobos & Deimos (MM#2)

What do you know about the Moons of Mars? Nothing? They are super cool (and strange), promise.

6. How to Catch a Dwarf Planet — Triton (MM#3)

If Neptune didn't catch Triton we might have another Dwarf Planet in our Solar system -- maybe even another Planet or double system. We show how this could have happened.

7. Are You Alone? (In the Universe)

Are you alone? To answer this question we have to take a look what "you" are first. What are you made of and where you stand in this universe. Are you your body? Your atoms? And how are your parts connected to the big picture?

8. Iraq Explained — ISIS, Syria and War

The current crisis in Iraq explained in under 5 minutes.

9. The Immune System Explained I — Bacteria Infection

Every second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itself for your survival. Without it you would die in no time. This sounds simple but the reality is complex, beautiful and just awesome. An animation of the immune system.

10. Everything You Need to Know About Planet Earth

Planet Earth is this solid thing you are standing on right now. In your everyday life you don't really waste a thought about how amazing this is. A giant, ancient, hot rock. How did it come into existence and how big is it really? You will be surprised. The ground you are standing on is just a very, very small part of the big picture.

11. Atoms as Big as Mountains — Neutron Stars Explained

Neutron stars are some of the strangest things in the Universe. Not quite massive enough to become black holes they are basically atoms as big as mountains, with properties so extreme it's mind-blowing. And if you get too close to a neutron star, you are in big trouble…

12. Is War Over? — A Paradox Explained

We live in the most peaceful time in human history. Wait, what? Seriously? That can't be right, there are more wars than ever! Well, no and they're killing fewer and fewer people, even though the world population is at an all-time high... and the numbers prove it! We explain how we came to this conclusion, and why war might... go away.

13. The Ebola Virus Explained — How Your Body Fights for Survival

What does the Ebola virus actually do in your body? Why is it so dangerous and why does it kill so many people? We take a look at the apocalyptic war that rages in the body after an infection by the Ebola virus and the soldiers fighting.

14. What Is Life? Is Death Real?

So what is the difference between you and a rock? This seems like an easy, even stupid question. But even the smartest people on Earth have no idea where to draw the line between living and dead things. Which leads to mind-blowing implications. What is life after all? And is death really a thing? Let's look into it together.

15. The Ultimate Conspiracy Debunker Finale

Most Conspiracy Theories are stupid. By the power of the internet they spread like wildfire and often poison discussions. But there is hope – we developed a way to debunk conspiracies in just a few seconds…