Imagine taking a trip to the outer reaches of our Solar System, to a place few have ever seen up close. Uranus, the icy giant, is a world of extremes, violent, cold, and...
Imagine a world where smartphones arrived decades before the internet became part of everyday life. People in the 1960s could have carried a camera, computer, and...
NASA has accomplished some of humanity’s greatest achievements. It put astronauts on the Moon, explored every planet in our Solar System, launched revolutionary...
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...
Right now, wherever you are, you are spinning with our planet at hundreds of meters per second. But what if our planet started hitting the brakes until our world didn’t...
Death Valley is the hottest place on Earth, with a record-setting air temperature of 57 degrees Celsius (134 degrees Fahrenheit). It’s a vast desert of oppressive...
These feisty marsupials are making an unexpected comeback in one of the most remarkable wildlife developments in recent history. But why are they called Tasmanian devils...
Every civilization needs resources. Wood, then coal, then oil, then sunlight. Each step up the ladder means learning to use something bigger than whatever came before...
When a piece of space debris connected to a SpaceX mission crashed into the Moon, it created a wave of curiosity around what happens when humans leave their mark on the...
Scroll to the bottom to watch our video. We love our convenience — single-use plastic utensils, paper plates, disposable cups, plastic wrap, wrapping paper for...
Jupiter is known as the king of moons. The massive planet has 95 known moons orbiting around it, and some are so large they could almost be considered planets themselves...
You’ve traveled thousands of light-years through interstellar star systems. And now you’re stranded on a planet you know nothing about. As long as...
You’ve seen what a nuclear meltdown can do to your body in the movies. It can cause strange deformities, radiation burns, and extra body parts. But how much of...
Could we be on the verge of finding a second Earth? Astronomers are searching the galaxy for a world that could support life as well as, or perhaps even better than, our...
You might be wondering how I keep ending up in these situations. Well, let me roll it back a bit. Triton, Neptune’s gargantuan moon, is one of the strangest objects in...
A huge gas giant suddenly appears in the sky. You look up in wonder. It’s beautiful. The second Saturn replaces our Moon in its orbit, Earth would just as suddenly...
Across the Solar System, there are worlds where volcanoes are far more extreme than anything found on Earth. On Jupiter’s moon Io, enormous volcanic eruptions send...
Swipe Down for Full Video Story Imagine a tiny needle traveling toward Earth at the speed of light. At first glance, it might seem harmless, since it is so small...
The Centers for Disease Control claims that 1 in 3 antibiotic prescriptions are unnecessary. Unnecessary antibiotics cause the body to build up a resistance to those...
Humans have been evolving for the past six million years. But something’s gone terribly wrong. And now we are evolving backward. Once this process began, how long...
