Imagine a 150-kiloton nuclear bomb exploded in the city closest to you. Do you know how the city, its surrounding region, and its inhabitants would be affected? If you can't think of much more than "a ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The new nuclear gravity bomb being developed under the administration ...

It's still not hugely likely, but this week the UK government warned everyone in the country to prepare for the possibility of war in Britain. Ministers are pushing for more planning for potential ...