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'4-D' ionosphere map helps flyers, soldiers, ham radio operators

Today, at the Space Weather Workshop in Boulder, Colo., NASA-funded researchers released to the general public a new “4D” live model of Earth`s ionosphere. Without leaving home, anyone can fly through the dynamic layer of ionized gases that encircles Earth at the edge of space itself. All that`s required is a connection to the Internet. Airline flight controllers can use this tool to plan...

Period drama

A Russian chemist was the first to draw up a successful periodic table. But it wasn't until years later that its far-reaching predictions were proved correct. John Emsley explains

Summer smash

Proof of the so-called standard model of particle physics hangs on a huge experiment taking place this summer deep beneath the Swiss border. Robert Matthews reports