Nuclear war is much more unpredictable than asteroids, but, unlike the dinosaurs of 66 million years ago, humans can avoid causing their own extinction.

In 1983, the film "WarGames" imagined a teenager who accidentally accessed a Pentagon computer system and triggered a ...

When atmospheric chemists Paul Crutzen and John Birks added smoke into their computer models of nuclear war scenarios, they ...

The war has made it harder for Iran to build a bomb, but if negotiations don’t lead to a substantive deal, it may also make ...

Is consciousness something the brain produces, or is it woven into the fabric of reality itself? Renowned neuroscientist Christof Koch is challenging long-held scientific assumptions by confronting ...

Iran insists its nuclear program is peaceful, but its enrichment levels, uranium stockpile, inspection disputes, and past ...