fern on MSN

We will bury you - the threat that led to the biggest nuclear bomb in history

In 1961, the Soviet Union detonated the most powerful nuclear weapon ever built. Known as Tsar Bomba, the explosion was over ...
Not What You Think Official on MSNOpinion

Why the world’s most powerful nuclear bomb was never meant to be used

The Soviet Union built the largest nuclear weapon ever detonated, but just before its test, engineers deliberately reduced ...
NBC New York

Which countries have nuclear weapons and how are they tested? What to know

President Donald Trump's comments Thursday suggesting the United States will restart its testing of nuclear weapons upends decades of American policy in regards to the bomb, but come as Washington's ...