Scientists are to announce the time on the "doomsday clock", and how close they believe we are to apocalypse.
The annual event brings many of the world's most eminent thinkers together to reveal how close to "midnight" humanity is.
It comes amid escalating tensions around the world, and concerns about everything from nuclear weapons to the power of artificial intelligence.
While we wait to find out just how doomed we are this year, you can read the Bulletin's explanation of how they came to their decision last year, here.
Last year, scientists left the clock at two minutes to midnight – a time only previously met during the depths of the cold war.
But they cautioned that there was nothing definitive about the timing, and that the world still had time to avert disaster.
Humanity as close to catastrophe as it has ever been, say scientists
'Dire as the present may seem, there is nothing hopeless or predestined about the future'There is plenty of reason to think the clock could move forward this year. That would mark the record, and be an indication scientists think we are more endangered than ever before.
They will presumably be influenced by a dispiriting confluence of concerns: everything from the wildfires in Australia to tensions between the US and Iran.
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Welcome to our live coverage of the The Bulletin of the Atomic Scientists' "doomsday clock" announcement. Everything begins at 3pm UK time.
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