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.<br><br>
The rest is an unknown, invisible… something…

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…

S2 E6: A Shot in the Dark

Direct Current is a podcast about energy -- the kind that lights our homes, powers our lives and shapes our world. From the U.S. Department of Energy's digital team in Washington, D.C., Direct Current brings you fresh, insightful stories of how we generate and use electricity, what that means for the planet, and the cutting-edge science that's driving a global energy revolution.

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Direct Current is a podcast about energy -- the kind that lights our homes, powers our lives and shapes our world. From the U.S. Department of Energy's digital team in Washington, D.C., Direct Current brings you fresh, insightful stories of how we generate and use electricity, what that means for the planet, and the cutting-edge science that's driving a global energy revolution.

Direct Current is a podcast about energy -- the kind that lights our homes, powers our lives and shapes our world.&nbsp;From the U.S. Department of Energy's digital team in Washington, D.C., Direct Current brings you fresh, insightful stories of how we generate and use electricity, what that means for the planet,&nbsp;and the cutting-edge science that's driving a global energy revolution.

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S2 E6: A Shot in the Dark

S2 E6: A Shot in the Dark

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