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The Moon and Nuclear War

, physicist & co-director, Global Security

The moon made headlines last week with the appearance of a so-called “super blood moon.” Several people I talked to, though, thought that name was a bit dramatic for what they actually saw in the sky.

But 55 years ago today, the moon was a star player in a short drama that could have justified that name. Read more >

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Nuclear Hair-Trigger and Launch-on-Warning: The World Says “No”

, physicist & co-director, Global Security

Almost all the world’s nations gather today at the UN in New York City for the month-long Review Conference of the international treaty designed to stop the spread of nuclear weapons and eliminate the ones that already exist.

The 1970 Treaty on the Non-Proliferation of Nuclear Weapons, or “NPT”, divides the world into nuclear weapons haves and have-nots, with the five nuclear weapon states—the U.S., Russia, China, Britain, and France—committed to nuclear disarmament in exchange for which the other 186 parties have pledged not to acquire nuclear weapons. The treaty includes inspections to make sure that countries with nuclear power programs don’t use the technology to produce nuclear weapons materials.   Read more >

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