Time travel has long been a favorite idea in science fiction. Stories about changing the past or visiting the future have captured imaginations for generations. While...
We heard the warnings. But we didn’t listen. Now, we live in a world controlled by artificial intelligence. How did we let this happen? Will we able to survive...
For years, Action Park in New Jersey was known as the most dangerous amusement park in America. Thousands of visitors left with cuts, broken bones, burns, and stitches...
It’s the end of your shift. Like every night, you walk down a quiet street toward the bus station. But then you hear it. Footsteps behind you. You glance back and see...
The Stone Age started 2.6 million years ago and ran for nearly 2.5 million years. Across that span, our ancestors survived three ice ages, chronic shortages of food, and...
The ocean is so enormous that it is difficult to truly understand its scale. Covering more than 71% of Earth’s surface, it contains the vast majority of all the...
But how would a second moon affect the ocean tides? Would months on Earth become longer or shorter? And would these two satellites inevitably collide to cause a...
It’s a small world after all, because today, we’re shrinking Earth to the size of Pluto. But if our planet was this tiny, how would it alter the atmosphere...
Life on Mars would be nothing like life on Earth. The first settlers would probably spend most of their time inside sealed habitats protected from radiation and the...
With Earth’s geopolitical tensions on the rise, the possibility of a global conflict is becoming more than just a distant threat. But in the modern era, a future world...
[dx_custom_adunit mobile_id=”RTK_v1lP”] Your alarm clock rings. Do you jump out of bed? Or hit the snooze button? Do you take cream? Sugar? Or both? We make...
Venus sits just one step closer to the Sun than Earth, making it our nearest planetary neighbor. At certain points in its orbit, it comes within roughly 40 million...
It sounds like something straight out of science fiction, but researchers have already created what many call the world’s first living robot. Instead of being...
Six hundred and thirty-five light years away from Earth, there is a world that seems to promise something almost unimaginable: a planet covered in a vast liquid ocean...
In 1998, a gentleman by the name of John Titor arrived from the future, or so he said. In his timeline, as he claimed, General Electric had managed to invent time travel...
[dx_custom_adunit mobile_id=”RTK_v1lP”] Twin siblings, twin peaks, twin cities, twin planets… Two earths, one solar system. How would that work? Where...
To meat, or not to meat: that is the hotly debated question. How would life on Earth change if we stopped eating all things animal?
It might sound like a scene from a science fiction movie, but the threat of an asteroid hitting Earth is more realistic than you might expect. One asteroid in...
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...
How cool would it be to see a real life T-Rex? If only that one fatal asteroid never hit Earth.
