Do you make your own luck, or does luck make you? Some scientists believe luck is strictly a matter of statistics and probabilities - but others believe unseen forces are at work.

There could be an undiscovered species on Earth unlike anything we've ever known. Not in the ocean, but the ocean itself.

Gravity is an unsolved mystery of the universe. Why do all objects that have mass pull on one another? New theories propose unexpected answers.

Humanity's potential seems limitless. But could we become as powerful as God? Scientific breakthroughs grant our species seemingly divine abilities.

Cosmologists agree that "dark matter" has helped shape our Universe, but now they need to figure out what dark matter is. What's going on in this hidden world? Could it have formed its own dark stars, planets, and even life forms?

We float along the river of time. But does that river have a source? Where did time come from?