The Doomsday Clock has just been updated. At two-and-a-half minutes to midnight, it is now the closest it has been to the apocalypse since the first tests of the hydrogen bomb in 1953. The reason for the move is pretty self-evident, but there’s another question you may have. What is the Doomsday Clock anyway? More at PM.
It has had a lot of publicity this week so it’s good to understand what exactly it is, and if it really matters.