A research team led by the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) has discovered ...

Russia has denied any responsibility for the attack. The head of the UN-backed international atomic energy watchdog, IAEA – which has a team based at the former Soviet nuclear site in Ukraine – issued ...

An eight-megaton explosion would be over 500 times more powerful than the atomic bomb dropped on Hiroshima, which had a yield of approximately 15 kilotons (0.015 megatons). The shocking video ...