Nuclear fuel in three reactors at the Fukushima No. 1 nuclear plant has possibly melted through pressure vessels and accumulated at the bottom of outer containment vessels, according to a government report obtained Tuesday by The Yomiuri Shimbun.
A "melt-through"--when melted nuclear fuel...
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Evaluation of the ongoing crisis at the Fukushima Nuclear Facility. The document paints a grim picture of evolving threats to the afflicted facility.
• mounting stresses placed on the containment structures as they fill with radioactive cooling water, making them more vulnerable to...