Counting Neutrons on the Moon

Find out how scientists are using a neutron detector onboard a satellite to try to find water on the Moon in this video adapted from NASA.

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Everyday Radiation

How much radiation are we exposed to every day? Find out in this video segment adapted from FRONTLINE.

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Fusion: Testing the First Hydrogen Device

This video segment adapted from AMERICAN EXPERIENCE features original footage of the U.S. test of the first hydrogen device, code-named "Mike", that would trigger thermonuclear fusion.

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Fusion: The Hydrogen Bomb

Just after World War II, nuclear scientists turned their attention from fission to fusion. This video segment adapted from AMERICAN EXPERIENCE looks at the beginnings of thermonuclear power generation.

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Nuclear Blast Footage

These video clips from the AMERICAN EXPERIENCE Web site feature actual footage of thermonuclear blast testing done in the 1950s.

Nuclear Reaction: Fission

This video segment adapted from FRONTLINE looks at nuclear fission as an energy source that can be used to generate electricity.

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Nuclear Reaction: Meltdown

What happens when a nuclear reactor overheats? This video segment adapted from FRONTLINE looks at the nuclear reactor meltdown at Chernobyl, the worst accident of its kind.

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Nuclear Reaction: Plutonium

One by-product of nuclear fission is plutonium. This video segment adapted from FRONTLINE takes a look at this toxic element.

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Nuclear Reaction: Three Mile Island

This video segment adapted from AMERICAN EXPERIENCE examines the worst nuclear accident in U.S. history.

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Nuclear Waste: Yucca Mountain

What happens to nuclear waste? This video segment adapted from FRONTLINE explores the controversy surrounding the United States' first nuclear repository site.

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Quarks: Inside the Atom

This video segment adapted from NOVA shows how the particle accelerator helped physicists find parts of the atom even smaller than protons and neutrons.

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Radioactive Decay of Carbon-14

This video excerpt from NOVA: "Hunting the Elements" examines carbon isotopes and radiocarbon dating.

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Radiometric Dating

In this video segment from A Science Odyssey, scientists explain how Earth's age was determined by examining the radioactive rocks in Earth's crust.

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Radon Radiation

The biggest source of environmental radiation might be in your home. Find out more in this video segment adapted from FRONTLINE.

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