A dark, mysterious object has appeared at the outer edges of our Solar System. It looks like the remnants of a dying star. But it behaves like a black hole. Your mission...
The idea sounds like something pulled straight from a disaster film. A shark with two heads moving through the ocean, defying everything we know about marine biology...
What if humanity grew to be so technologically advanced that we were able to leave our Solar System and spread across interstellar space? Would we hop from one exoplanet...
What would happen if the rain simply stopped being reliable? At first, people might treat it as a bad season, but after several years, empty reservoirs, dying crops, and...
Militaries around the world are money-eating machines. And they keep getting more expensive. In 2019, the world spent $1.917 trillion on all the different militaries...
If you could, would you live on the Moon? Not as one of the courageous early settlers, but as a citizen of a fully-functioning Moon city. What would they be built out of...
You wake up one morning and something feels wrong. The usual sounds of traffic outside your window are gone. There are no voices, no footsteps, and no signs of everyday...
You reach out to pet a horse when it suddenly snaps at your arm. Startled, you step back. The horse rears up. If it comes down on you, the injuries can be serious. One...
It may sound like science fiction, but imagining a battle between a gas giant and a black hole helps us understand just how fragile our Solar System really is. Such a...
More than 55 million years ago, a giant predator ruled the swamps of ancient South America. Titanoboa was the largest snake ever discovered, reaching lengths of around...
Why are these crocodiles spending so much time on dry land? Is it because their watery homes are too polluted? Or is it because they’re scared of a bigger predator...
When most people think of sharks, they picture a powerful predator lurking beneath the waves. Movies, news stories, and popular culture have helped give sharks a...
Danger can be found almost anywhere in the world. Sometimes, being in the wrong place at the wrong time is all it takes to become caught in a dangerous situation. But...
One of the greatest scientific discoveries in history may be hidden beneath nearly 13,000 feet of Antarctic ice. Deep below the frozen surface lies Lake Vostok, a...
Imagine if all the Earth’s oxygen disappeared. Not forever, just for, say, an hour? Could you hold your breath that long? What would happen to the atmosphere? And...
Scientists have a threshold for planetary destruction. An object roughly 96 kilometers wide, striking Earth, would wipe out every living thing on the surface. Jupiter...
While it might be nice to avoid any dangerous confrontations on your wilderness walks, life without wildlife would be pretty boring. If we didn’t have animals...
Most insects are harmless, and many play an important role in the environment. But a small number possess painful stings, toxic venom, or defensive chemicals that can...
For generations, humans have dreamed of leaving Earth and exploring new worlds. From the first steps on the Moon to modern space missions, we have continued pushing...
At first glance, a sloth hardly looks like an animal you should be afraid of. It moves slowly, spends most of its life hanging from tree branches, and often appears to...
