What If Mammoths Never Went Extinct?

A team of Russian scientists is working hard to resurrect this quintessential Ice Age behemoth. But what if they never disappeared in the first place, and still roamed...

What If the Moon Exploded?

Is it a meteor shower? Space debris? No, it’s something much, much worse. Our nearest neighbor is a full Moon no more. The Moon exploded and splintered into...

What If You Lived on Kepler 22-b?

635 light-years from where you are sitting, way out in outer space, lies a planet. The first planet to be discovered inside the habitable zone of a Sun-like star. Its...

What If the Sun Swallowed Earth?

The Sun’s core is shrinking. But as its core shrinks, the Sun itself grows larger. And it will continue to grow, until one day, it engulfs the Earth. How long can you...