Bookmarked Kurzgesagt - In a Nutshell 12x22 "Black Hole's Evil Twin - Gravastars Explained" (Trakt)
Gravastars could change how we think about the universe. These cosmic objects solve black holes’ biggest problems without breaking physics. From their ultra-thin shell to their energy-filled core, gravastars are both elegant and terrifying. But what exactly are they?

Bookmarked Kurzgesagt - In a Nutshell 12x21 "Vaping Is Too Good To Be True" (Trakt)
Vaping is marketed as the “safe” alternative to smoking, but it’s far from being harmless. Unregulated ingredients, hidden toxins, and extreme nicotine levels mean we’re conducting a massive experiment on ourselves. Let’s dive into what we know – and what we don’t know, yet.

Bookmarked Kurzgesagt - In a Nutshell 12x20 "We Have To Talk About Weed" (Trakt)
Cannabis is finally being decriminalized in more and more places around the world. And for very good reasons! Compared to other legal drugs such as alcohol, cannabis is pretty mild and most users enjoy it without issue. But there’s a dark side for some. So let’s take an honest look at some of the latest research together.

Bookmarked Kurzgesagt - In a Nutshell 12x19 "The Most Insane Weapon You Never Heard About" (Trakt)
At the height of the Cold War, a terrifying concept emerged: a bomb so powerful it wouldn’t need to be dropped. Known as Project Sundial, this doomsday device would have left a 400-km radius in flames and plunged the world into darkness. It was a bomb that would destroy everything – not a weapon, but an apocalypse. How close did we come to pressing the button?

Bookmarked Kurzgesagt - In a Nutshell 12x18 "We Fell For The Oldest Lie On The Internet" (Trakt)
“Your blood vessels stretch a staggering 100,000 kilometers, enough to wrap around Earth twice!" Sounds amazing, right? We spent over a year trying to confirm this claim, and let's just say – things aren't as they seem. Join us on our year-long journey that uncovered outdated science, speculation, and a lot of dead ends.

Bookmarked Kurzgesagt - In a Nutshell 12x17 "Tired of Doomscrolling?" (Trakt)
Being a human in the 21st century often feels frustrating. We are clearly at the high point of our species, while at the same time life is incredibly hard! We are divided, unable to solve our problems while creating new ones, destroying our world in the process. In many ways the vibe is that we live in dark times. But as Terry Pratchett said, we are the storytelling ape, we think in narratives and live in a network of stories that make up our world. So without minimizing the darkness, we want to add a story that we find helpful for dealing with the world.

Bookmarked Kurzgesagt - In a Nutshell 12x16 "There Is Something Hiding Inside Earth" (Trakt)
We’ve found a new planet, home to octillions of the most extreme beings living in the most absurd and deadly hellscape. In absolute darkness, crushed by the weight of mountains, starved of oxygen, cooked alive, bathed in acid, salt or radiation. And yet, they live for thousands, perhaps millions of years! It turns out, this planet is not in space – it is inside the crust of Earth! This is the deep biosphere and we basically learned that it exists yesterday. Its volume is at least twice as large as all the Earth’s oceans, home to more microbes than the rest of the entire planet.Their total biomass is more than 20 times greater than all humans, livestock, and animal wildlife. Let’s descend into this mad, deadly world where none of the rules we thought are mandatory for life apply.

Bookmarked Kurzgesagt - In a Nutshell 12x15 "...Will Save Your Life Next Week" (Trakt)
58 of you watching this video right now will not be alive next week. And it’s not because of some freak accident or rare disease. It’s because of everyday actions you probably think are harmless. Let’s save your life today by looking at what is most likely to kill you next week – so you can avoid it.

Bookmarked Kurzgesagt - In a Nutshell 12x14 "Why Scientists Are Puzzled By This Virus" (Trakt)
You’ve got trillions of viruses inside you – right now! But these aren’t the viruses you fear. Some of them are your body’s secret protectors, keeping deadly bacteria in check and even killing cancer cells. But what happens when they turn against you? Let's look at the wild world of the human virome.