Pakistani nuclear weapons scientist Abdul Qadeer Khan dies aged 85 | The World

In This Story: Australia

Australia, officially known as the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. It is the largest country in Oceania and the world’s sixth-largest country by total area.

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In This Story: North Korea

North Korea, officially the Democratic People’s Republic of Korea, is a country in East Asia constituting the northern part of the Korean Peninsula.

Pyongyang is the country’s capital and largest city.

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In This Story: Nuclear Weapons

A nuclear weapon (also called an atom bomb, nuke, atomic bomb, nuclear warhead, A-bomb, or nuclear bomb) is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or from a combination of fission and fusion reactions (thermonuclear bomb). Both bomb types release large quantities of energy from relatively small amounts of matter.

A nuclear device no larger than traditional bombs can devastate an entire city by blast, fire, and radiation. Since they are weapons of mass destruction, the proliferation of nuclear weapons is a focus of international relations policy.

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