time zone clocks reuters
REUTERS

Could time zones solve energy crisis?

Splitting South Africa into two time zones could alte electricity peak demand times, an expert says.

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ebola vaccine file reuters
REUTERS

Trial finds Ebola shot is safe

First results from a human trial of an Ebola vaccine show it generates an immune response, scientists say.

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EPA

Skull a key 'piece of the puzzle'

A partial skull retrieved from a cave in northern Israel is shedding light on a pivotal juncture in early human history.

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