About 50,000 years ago, we shared this planet with different hominids called the Neanderthals. Their species wasn’t human, but they weren’t far from it...
THE SUN IS A GIANT BALL OF FIRE No. Our Sun isn’t a raging bonfire in the center of the Solar System. It’s actually a nuclear reactor. Inside stars, hydrogen...
How big is the Sun compared to the Earth? Imagine you were able to shrink the Sun to the size of a basketball. At that point, the Earth would be reduced to the...
410 kilometers (254 miles) above the Earth. That’s where the International Space Station floats. What if you happened to be all the way up here but suddenly fell...
The world has ended. The sky has fallen. Doomsday has come and gone. So now what? Let’s start rebuilding civilization, of course. How would you begin to come back from...
From crushing pressures to oceans of liquid metal, every planet in our solar system hides something extraordinary beneath its surface. Scientists can’t physically reach...
[dx_custom_adunit mobile_id=”RTK_v1lP”] You’ve seen it in the movies and read about it in books, but now the idea of creating artificial life in a...
When you travel to an abandoned place, it’s important to remember that people left these towns for a reason. It could be due to dangerous human activities...
When you look back through the evolutionary history of life on Earth, it’s important to remember it’s always been a game of survival. And only the fittest...
I hope you’ve packed some ice skates for your next trip out to sea because the oceans have completely frozen over. What conditions could cause this massive...
Scroll down to watch the video. The Earth might not remain habitable forever. It could get engulfed by a massive solar flare, or become too hot due to climate change, or...
Astronomers have discovered hundreds of exoplanets, planets beyond our Solar System. Some of these alien worlds orbit their stars in what is known as the “habitable...
Imagine the Sun releasing a burst of energy so powerful it could knock out power grids, stop airplanes mid flight, and push our world back into the dark ages. This is...
How cool would it be to see a real life T-Rex? If only that one fatal asteroid never hit Earth.
With so many amazing things happening in the world today, what could possibly go wrong? Well… A giant asteroid is barrelling on a collision course with Earth, and...
You’ve made it to Galaxy 3812, a hypothetical galaxy that houses a type III civilization. One of the first things you’ll notice are the Dyson spheres that...
That’s no moon. It’s a space station. The enormous, planet-killing kind, designed for only one thing — to bring order to the galaxy. It’s Star...
This shiny metal is constantly in a liquid state. This is mercury. We normally see this metal in tiny quantities. But what would happen if we took thousands of liters...
What if, instead of Trump or Biden becoming the next U.S. President, there was a third-party candidate? And that candidate was Elon Musk? What if Elon Musk became the...
Tired of living on an overpopulated Earth? Why not move to the O’Neill Cylinder? An artificial state-of-the-art space habitat where we can control everything...
