Al Jazeera spoke with MIT professor Ted Postol about what Iran could do with its 440kg of 60 percent enriched uranium.

When Iran’s covert nuclear program came to international attention over two decades ago, Tehran insisted that its intentions were peaceful and that it had no plans to develop nuclear weapons.

Next week federal officials will address concerns and take environmentalists on a tour of a nuclear bomb factory that could cost taxpayers $30 billion.

The head of United Nations' atomic agency has warned that 20 countries are pursuing nuclear bombs.

Experts say the U.S. must permanently ban Iran's uranium enrichment program, warning Tehran could resume its nuclear weapons path if infrastructure stays.

Sina Azodi, assistant professor of Middle East politics, debuted new book "Iran and the Bomb: The United States, Iran and the Nuclear Question" at Elliott School Book Launch Series on Tuesday.

In the early hours of 26 April 1986, Reactor 4 at the Chernobyl Nuclear Power Plant exploded after a planned safety test went catastrophically wrong. The Chernobyl disaster was the result of a chain of critical errors — and its fallout was unprecedented.

Photos of the infamous nuclear Chernobyl site show the abandoned power plant frozen in time — with a control panel still lit up ahead of the 40th anniversary of the unprecedented disaster.