The Rush to Deploy SDI

How the Administration is defying scientific opinion, bypassing internal Pentagon review procedures, stalling Congress, and pressuring the military in its effort to field a "first generation" space-based missile defense within a decade.


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Where Time Comes From

The clocks that coordinate your cellphone, GPS, and more

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Computer Vision Syndrome and You

Save your eyes. Take breaks.

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What Happens in 60 Seconds

Quantifying human activity around the world

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