jan 19, 2011 - 2011
January 19 - The United States and China sign a deal to build a jointly-run nuclear security center in China. This center will be dedicated to preventing proliferation.
February 5 - New START treaty officially takes effect.
March 11 - A 9.0 earthquake and subsequent tsunami strike Japan, causing the Fukushima Daiichi Nuclear Power Plant to shut down. Emergency cooling systems fail, causing the plant to experience partial meltdown. The crisis is labeled at the highest level on the International Nuclear Events Scale
March 19 - Malaysian police discover parts designed for nuclear weapons being smuggled on board a ship to Iran.
May 11 - Russia delivers 30 tons of nuclear fuel to Iran, completing an agreement signed in 1995 between Iran and Russia to build a nuclear power facility.
May 13 - It is revealed that 32 separate nuclear power plants in the United States have failed safety tests after the Fukushima incident.
June 9 - The International Atomic Energy Agency announced that the Fukushima Daiichi plant in Japan has experienced a "melt-through" at three reactors. Significantly more dangerous than a meltdown, a melt-through is considered the worst possible scenario short of an explosion at the nuclear plant.
June 10 - Iran announces to the International Atomic Energy Agency that it will begin enrichment at its new Fordow plant.
July 13 - Funds are put in place to build a shelter over the Chernobyl nuclear reactor that experienced meltdown in 1986.
August 20 - General Electric successfully tests a method of enriching uranium with lasers.
November 23 - Russia announces plans to counter the missile defense system that the US has been planning in Europe.
December 1 - The U.S. State Department releases an updated count of its deployed and reserve strategic nuclear weapons as of September 1, 2011. The U.S. has 822 deployed ICBMs, SLBMs and heavy bombers, while Russia has 516. The number of nuclear warheads deployed on these platforms total 1,790 for the U.S. and 1,566 for Russia.
Added to timeline:
atomic and nuclear physics