Quetzalcoatlus lived around 72 to 66 million years ago during the Late Cretaceous period, when it blocked out the sun with its 12 m (40 ft) wingspan. When it landed on...
An unusual visitor has entered our cosmic neighborhood. Scientists call these objects interstellar objects, or ISOs. Unlike asteroids and comets that formed around our...
Welcome to the longest staring contest of your life. You’re about to go seven days without blinking. What device would keep your eyes forced open? How long would it take...
Have you ever felt like it was so hot out that you could cook an egg on the road? Or do you enjoy incredibly spicy foods for the thrill of it? Well, imagine living in an...
[dx_custom_adunit mobile_id=”RTK_v1lP”] Betelgeuse, Betelgeuse, Betelgeuse. Unlike in the movie, you don’t have to say it three times to make it...
As 2027 rapidly approaches, the global community stands on a razor-thin edge dividing existential hazards from era-defining scientific breakthroughs. From intensifying...
What if all the oceans disappeared from the Earth’s surface? What would a world with no high seas look like? What would happen to all the creatures that...
Welcome to the Qinghai-Tibet Plateau, the “Roof of the World.”It’s home to the world’s tallest mountain, Mount Everest. But also the longest, deepest canyon on the...
From prehistoric predators and ancient pandemics to volcanic winters and asteroid impacts, Earth’s history is filled with moments so extreme they would be almost...
Would you drink water that was extracted from the Moon? With NASA’s recent discovery of water on the Moon’s surface, it might become a more common practice...
Spanning more than 66 million years, the Cenozoic Era shaped the world we live in today. From the rise of mammals to the emergence of modern humans, this era tells a...
A remote stretch of desert. A field littered with strange metallic debris. Military officials rushing to the scene. And a headline that would ignite one of the most...
Scroll down to watch our video. Where would I be without you, Mr. Mittens? It’s not a meme; it’s a fact: We can’t live without cats. Do you know why...
Two billion years ago, Earth was a strange and hostile place. It was an era marked by dramatic climate shifts, dangerous changes in the atmosphere, and the birth of...
Before sunrise, deep in remote terrain, a single worker steps out of a tent into cold, uncertain weather. The job ahead is simple in theory but brutal in practice...
Black holes are often imagined as cosmic vacuum cleaners that swallow everything nearby, but what would really happen if you entered one even for a single nanosecond...
Today on What If, we’re taking Jupiter’s deadly gases and unleashing them on Earth. Where could you be safe from these toxic winds? How would you breathe...
The Paleozoic era began 530 million years ago when the Earth woke up from an ice age. This era lasted for 289 million years, but you might not even last five minutes in...
Swipe Down for Full Video Story It sounds like science fiction, but imagining a collision between Jupiter and a black hole helps reveal just how delicate our Solar...
Imagine landing on a planet where the surface looks frozen but burns hotter than your oven. Welcome to Gliese 436b, one of the strangest known planets in the universe...
