Earth, the cosmos, everything we can see with our eyes and our instruments is made up of normal matter. But all that doesn’t add up to a whole lot. It's just 15% of the mass of the universe.

The rest is an unknown, invisible… something… This mysterious substance lives under the alias of DARK MATTER.

It’s one of the most staggering scientific puzzles in the history of human knowledge. A mystery that goes back to the very birth of our universe. Luckily, our detective-producers are on the case.

Direct Current - An Energy.gov Podcast proudly presents… A Shot in the Dark: The Case of the Missing Matter.