The fuel rods in one of Japan's damaged nuclear reactors have been temporarily fully exposed from their coolant, raising the risk of overheating and a meltdown.

Russia's Balakovo 1 underwent a sudden shutdown late on 29 January as control rods were found to be in an irregular position. The VVER-1000 pressurised water reactor (PWR) was operating at 1030 MWe ...

The No 4 Reactor was undergoing checks at the time of Friday's quake and was not operating, TEPCO said, adding that but they have been having problems cooling down a storage pool for spent nuclear ...

Fuel rod quick facts TEPCO engineers have a plan to remove more than 1,500 fuel rod assemblies from a pool in Daiichi nuclear site's reactor four building. Six teams of six workers will operate a ...

Tokyo Electric Power Co. (TEPCO) said on Thursday that due to unexpectedly low levels of water, nuclear fuel rods are fully exposed in a reactor at the crippled No 1 Fukushima nuclear power plant.

TEHRAN, Iran (AP) -- Iran's official news agency says Iranian scientists have inserted a domestically made fuel rod into the core of a research nuclear reactor in Tehran.Tuesday's report comes a ...

TOKYO (AP) — Japanese officials say the nuclear fuel rods appear to be melting inside all three of the most troubled nuclear reactors. Chief Cabinet Secretary Yukio Edano said Monday: "Although ...