Get your bone flute and gather around the fire. Today on What If, we're taking you back to the time of woolly mammoths and saber-toothed cats. That's right. You're living in the Stone Age. If you were ...

Surface-bound gels may have offered the structure and chemistry needed for life to take hold on Earth—and possibly elsewhere.

We have long struggled to determine how the first living organisms on Earth came together. Now, surprising evidence hints ...

Beneath the earth, mud, stone, and bamboo are transformed into a hand-built living room that feels like a hidden resort.