He says researchers were killed because they knew about Planet X.
Doomsday predictions are nothing new and will likely continue until one comes true. Here's why.
Doomsday predictors may think that the tomorrow, September 23, marks the beginning of the end, but scientists have other views.
The “clock” is now at two and a half minutes to midnight, 30 seconds closer than in 2016.
The clock measures how close humanity is to imminent disaster.