Scientists know when the world will end! 🌎

Stars spend their life fusing hydrogen together to form helium and other heavier elements then they eventually die when they no longer have hydrogen to fuse. Huge stars die by a massive explosion (supernovae) during which elements heavier than iron are created. However our star isn’t as big of a star to die by such a cataclysmic explosion but it would die by other means.
If no external event happens (such as some kind of human extinction event )
Then our demise would be when our sun dies which is estimated to die in around 5 billion years.

#generalknowledge