Black holes have serious pull, and they're not afraid to use it. Could one of these skulking bad boys ever arise in our home, sweet (solar system) home? See more »

If the colonists hadn't eked out a victory against the mighty British Empire, what would have been their fate? Would leaders like the beloved George Washington and Thomas Jefferson have been executed? See more »

Before leaving work, you'll need to check the traffic report. Lately, a disruptive T. rex has meant some adjustments to your commute. What other changes would be in store if dinos roamed the Earth? See more »

Would a world with ample water for all mean less disease? Fewer wars? Globally improved health and finances? Sip along with us as we wonder what if. See more »

Would the people of the world get along better if they spoke the same language? Or would it just be easier for us to hate each other? See more »

It's one of those fantastic things you may have wished for at one point, like, say peace on Earth, but would a world full of cures be radically different from the one we know, or not so much? See more »

You can say goodbye to the seven continents and hello to days that seem infernally long. What else awaits you on a spin-free Earth? See more »

Unless you've been living under a rock, you're probably intimately familiar with Google and its services. But what would the world look like if this powerhouse company had never existed? See more »

It's a crazy thought, but what if cancer didn't exist? And malaria, schizophrenia and every other illness that disrupts our normal functioning? Come along as we investigate what such a world might look like. See more »

Would we stick flowers in our hair and dance in the street? Or twiddle our thumbs and wonder what to do with all that new free time? Join us as we ponder a world without war. See more »