In 1954, scientists and military personnel gathered at Bikini Atoll to witness Castle Bravo, the first test in a major series of thermonuclear experiments conducted during the early Cold War. The ...

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.

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.