Elon Musk’s car company quietly bought $1.5 billion worth of Bitcoin while he hyped the digital currency on Twitter.

A widely used cryptocurrency can’t escape investigation and controversy—and it may be fueling another coin bubble.

MicroStrategy CEO Michael Saylor has invested billions in Bitcoin. Can we trust him—or the cryptocurrency’s skyrocketing value?

Mining the cryptocurrency requires a staggering amount of energy—contributing to global warming and providing little public benefit.

“Mining” is the engine that keeps the Bitcoin network working, but it has swelled into a resource-hungry, capital-intensive, centralized syndicate. Is the Internet's native currency worth all the effort?

Unwrapping a Google Glass this Christmas? Bitcoins putting your children through college?

And you can watch in real time

Even Ben Bernanke's on board. Don't fall for it.