Every time a satellite streaks across the night sky in a final blaze, it is performing one of the least understood phases of ...

The demise of coal mining in the Lackawanna valley 65 years ago also stopped the pumping of water out of the deep, underground mines. With pumps turned off, water soon filled the labyrinth of tunnels ...

These chemical oddities may explain why Earth seems to be deficient in certain elements — and could prove useful in catalysts ...

What is heavy water, and is it safe to drink? Heavy water, or deuterium oxide, has some pretty important scientific applications. But what would happen to your body if you actually drank it? Hosted by ...