The Academy said the three were chosen for having shown what a ribosome looks like and how it operates at the atomic level.

VOA: special.2009.12.08

But the invasion never came. For years,American scientists had been developing a secret weapon,the atomic bomb.

VOA: special.2011.06.23

In nineteen fifty-four, the Atomic Energy Commission and a special security committee moved against Mister Oppenheimer.

VOA: special.2009.06.14

With another scientist, Mister Fermi wrote a nineteen forty-seven report to the Atomic Energy Commission.

VOA: special.2009.06.14

"The world will note that the first atomic bomb was dropped on Hiroshima,a military base.

VOA: special.2011.06.23

President Harry Truman announced to the world about the first bomb: "The world will note that the first atomic bomb was dropped on Hiroshima, a military base.

VOA: special.2009.06.14

While denying any intention to build atomic weapons, Iran is actively pursuing a nuclear program and upgrading its missile technology.

VOA: standard.2010.04.11

The website is overseen by a group of working physicists, but you don't need a Nobel Prize to join in the adventure of sub-atomic particles.

VOA: standard.2010.03.05

(Sound) Iran's English-language Press TV reports that International Atomic Energy Agency inspectors are beginning a three-day visit to Iran,Saturday, to examine the country's Fordoo nuclear enrichment facility.

VOA: standard.2009.10.24

Though Iran was to respond by Friday, the International Atomic Energy Agency said Iran told it that while it was considering the plan in a favorable light it needed until the middle of next week to make a decision.

VOA: standard.2009.10.24

Iranian President Mahmoud Ahmadinejad's assertion in a Friday news conference in New York that the new facility was not in violation of International Atomic Energy Agency guidelines and would be for energy purposes seemed to only increase the degree of anger on Capitol Hill.

VOA: standard.2009.09.25

(Sound) Amid loud acclamations of approval, top hardline Iranian cleric, Hojatoleslam Ahmad Khatami warned the West that Tehran will produce its own high-grade uranium for a medical research reactor, if the UN International Atomic Energy Agency refuses to provide the fuel.

VOA: standard.2009.11.28

How do we know that they are not going to keep it all?" The United States and allies France and Russia have supported the IAEA draft deal with Iran as a means to alleviate concerns that Tehran is using its nuclear program to develop atomic weapons covertly.

VOA: standard.2009.10.28