See that strip of stars splashed across the night sky? That’s our home galaxy, the Milky Way. You can see it from Earth because we live on its very outskirts, far...
The Sun generates its energy through a process called nuclear fusion. In its core, hydrogen atoms fuse together under the forces of extreme pressure and heat to form...
If you were to drill straight down into Mars, what would you find? Would the red planet reveal its true colors? Would you finally discover life on Mars? And how...
Billions of years in the future, the Sun will begin to die. And this is what our planet would look like. But what if we turn things up a notch or two right now...
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...
Pluto has long been one of the most debated celestial bodies in our solar system. Once classified as the ninth planet, it was redefined in 2006 as a dwarf planet, a...
Do you long for an elegant weapon from a more civilized age? Something less clumsy and random. As you hone your sensitivity to the Force, you may wonder. What if...
The ocean is home to some of the most extraordinary creatures on the planet. From tiny deep sea hunters to massive gentle giants, its waters hide animals that are both...
What do saber-toothed tigers, woolly mammoths and the dodo all have in common? They’re all extinct, and some theorize humans played a large part in this. What if...
Are you tired of cramped city-living? Then anti-gravity might be for you! Do you want to soar effortlessly over traffic jams, while the drivers below you lose their...
Are you ready for the sun to die?
Imagine an ultimate road trip across the globe. On a highway along the equator. Wait, there is no highway along the equator… yet. So how about we build one? What...
Imagine you’re out for a blissful swim, trying to catch a glimpse of some beautiful whales. The sun is shining, the water feels refreshing, and, uh oh, something just...
China invading the U.S. is something that could turn the world on its head. Could the U.S. mobilize in time to respond? Would this be the start of World War III? The...
They sent humans to walk on the Moon, flew by every single planet in our Solar System, delivered the first residents to the International Space Station… What else could...
Most people think bears are the biggest danger in the wild. In places like Alaska, that assumption is wrong. Moose actually attack humans more often than any other large...
Imagine looking up at the night sky and learning that a black hole is racing toward Earth at nearly the speed of light. Not a giant one that swallows galaxies, but a...
Our world is sleep-deprived. In the last century, people slept an average of nine hours per night. Today, more than half the world’s population gets by on less...
The Earth may not be our home forever. Eventually, we may have to leave. What if instead of finding a potentially habitable exoplanet light-years away, we stayed in our...
Burj Khalifa, the tallest building in the world. This masterpiece in Dubai is twice the height of the U.S.’s Empire State Building. And it’s almost three...
