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Is there an optimal time of day to work out?

It’s a long-standing discussion for all who want to get into shape. When is the best time to exercise? Morning and evening workouts both have their benefits.

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New satellite will see objects 1-foot across

A satellite designed to produce high-resolution images of Earth from space was launched Wednesday from a California military base. DigitalGlobe says the satellite will be able to capture images of objects as small as 1-foot across.