The Mayans didn't really say the world was going to end tomorrow . . . that's just how people have misinterpreted them. So I feel totally, 100% confident in saying the world is NOT going to end tomorrow.
BUT IF IT DOES . . . here's how it's going to go. According to scientists, the most likely way the world could suddenly end (say in just one day) would be from something called a DARK COMET. That's a massive comet that's not covered in ice and snow like regular comets, which makes it WAY more difficult for us to spot them in space.
A dark comet hitting us would only immediately destroy everything in the impact zone. BUT . . . it would send so much dust into the atmosphere that it would block the sun, and cause all the crops worldwide to fail. Kind of like what was predicted in the cheeseball disaster movies Deep Impact, Armageddon, and their 1979 predecessor Meteor.
So we'd all die slowly and painfully from a global famine. Have a great Thursday!
If a dark comet isn't the end, the second-most likely scenario would be an underground volcano erupting. That would have the same effect of shooting dust into the atmosphere. See Dante's Peek or ask any surviving relatives of Pompeii about that one.
In any case, let us remind ourselves that these sci fi distractions are for entertainment purposes only. See you on Friday.