Pets can be many things to people. To some, pets are life-changing family members. To others, they’re noisy troublemakers. And pets are the stars of hilarious...
Twenty million years ago, the oceans were dominated by one of the most formidable predators in Earth’s history: the Megalodon. This massive shark, the largest ever known...
A rare interstellar visitor known as comet 3I Atlas is currently drifting through our Solar System. At first glance, it might look like just another icy rock in space...
How do you distinguish between past, present, and future? Is there really an order to time? Does it only move forward? Does it move in any direction at all? Stop...
1.3 billion years ago, two orbiting massive black holes, circling each other at 250 times a second, collided in a violent, universe-rippling explosion that sent waves of...
If you’re watching this right now, you’ve probably used antibiotics at some point in your life. But did you really need to? The Centers for Disease...
Titan. The most majestic of Saturn’s many moons. And the most promising for life too. It’s got a beautiful view and liquid lakes on its surface. The only...
With nearly eight billion people on the planet, things can feel pretty crowded. Let’s make things a bit tighter by housing every single person on Earth in one giant...
The First World War began on July 28, 1914, when Austria Hungary declared war on Serbia, triggering a rapid chain reaction across Europe. Within days, the conflict...
When I say jump, you say how high. Let’s put this to the ultimate test by hopping around the Solar System. Literally. What differences in gravity would you experience...
Millions of years ago, the Earth looked very different. A huge landmass, called Pangea, covered about a third of our planet. But about 175 million years ago, the Earth...
Scientists theorize that many millions of years ago, Mars had rings, just like Saturn. And it looks like the red planet could be due for a new set of rings in the future...
Today on What If, we’re going to build the highest bridge on planet Earth. Welcome to the Qinghai-Tibet Plateau, the “Roof of the World.”It’s home to the world’s...
Just four light-years from Earth lies the closest known exoplanet, Proxima Centauri b. It has captured imaginations because it could be one of the first exoplanets where...
Swipe Down for Full Video Story Deep in space, astronomers have detected unusual radio signals that immediately sparked excitement and controversy in the scientific...
Imagine if we could collect the energy out of thin air. And I mean it quite literally. You know how you were taught that a vacuum is nothing but empty space? That...
Our Moon quietly shapes life on Earth, from stabilizing our climate to driving ocean tides and lighting the night sky. But what if we swapped it for other moons from...
Hang on because we’re about to screech to a halt. That’s right. The Earth is going to stop spinning for five seconds. How much damage would this sudden stoppage cause...
[dx_custom_adunit mobile_id=”RTK_v1lP”] On average, you produce just over 2 kgs (4.4 lbs) of waste each day. That may not sound like a whole lot, but...
Why do solar panels look so different these days? And why have we started installing them on top of mountains, using them to pave our roads, and putting them in the...
