Why does lightning zigzag? At last, an answer to the mystery

Everyone has seen lightning and marveled at its power. But despite its frequency—about 8.6 million lightning strikes occur worldwide every day—why lightning proceeds in a series of steps from the thundercloud to the earth ...

Fuel removal device installed at meltdown-hit Fukushima reactor

Workers at Japan's crippled Fukushima Daiichi nuclear power plant have installed a device to remove nuclear fuel from a meltdown-hit reactor nearly seven years after the crisis was sparked by a tsunami, a spokesman said Monday.

Multiple challenges remain to Fukushima nuclear cleanup

Japan's government approved a revised road map Tuesday to clean up the radioactive mess left at the Fukushima nuclear power plant after it was damaged beyond repair by an earthquake and tsunami in 2011. Decommissioning the ...

Crews cover partially-collapsed tunnel at nuclear site

Workers this weekend finished installing a protective cover over a partially-collapsed tunnel that contained radioactive waste on the Hanford Nuclear Reservation, the U.S. Department of Energy said Monday.

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