Unlocking the secrets of the universe

Long ago, about 400,000 years after the beginning of the universe (the Big Bang), the universe was dark. There were no stars or galaxies, and the universe was filled primarily with neutral hydrogen gas.

Apps for surviving disasters

When the next big earthquake strikes the Bay Area, millions will likely be stranded without the high-tech comforts provided by Silicon Valley.

Norway prepares for controversial FM radio shutdown

Norway on Wednesday will become the first country in the world to start shutting down its FM radio network in favour of digital radio, a bold move watched closely by other countries around Europe.

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