Space-based nuclear weapons are a serious matter, and one that deserves the very highest level of national attention.

At 5:29am on July 16, 1945, humanity lurched into the birth of a dangerous new era as the world's very first nuclear explosion blossomed over New Mexico .

That was the moment when human beings first unleashed the power of the nucleus in an immense, blinding ball of fire above a ...

A revisit to the historic Trinity nuclear test reveals how the world's first atomic explosion in 1945 created a rare radioactive mineral called trinitite.

The Lawrence Livermore National Laboratory study shows that the formation of radioactive fallout is more complex than some ...

Here’s what you’ll learn when you read this story: The 1945 Trinity nuclear test fused desert sand and bomb-tower materials into trinitite—a glassy substance unlike anything humans had created before.

Chernobyl Explosion: 40 years later, disaster still shapes nuclear safety The Chernobyl disaster remains the world’s worst nuclear accident, displacing hundreds of thousands and reshaping global ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. President Donald Trump has announced that the United States will resume ...

Confusion on whether Iran truly needed only “two weeks to four weeks” to make a nuclear weapon, as President Donald Trump suggested on Monday, hangs over the ongoing U.S. and Israeli war on the ...