What If Humans Were Immortal?

Imagine the possibilities that would come with living forever! You could spend more time with loved ones, master a variety of careers, and travel the entire world! If...

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 Humans Evolved Backward?

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...

What If Two Black Holes Collided?

Black holes are the gravitational monsters of the Universe. They are so powerful that nothing, even light, can escape their grasp. One black hole is bad enough. But if...