The world probably won't end on Friday - but if it does, you'll want a good view.
Luckily, at least one website is already broadcasting the end of the world live on the Internet.
The Slooh Space Camera is broadcasting a series of live events designed to help the public watch for the arrival of mysterious, deadly planets, giant tides, blackouts and other phenomena which could destroy mankind.
The online events are being held in response to concerns (or at least mild interest) about the supposed apocalypse, which is said to coincide with the end of the 13th Mayan bak'tun (or 144,000-day cycle).
Each of the events will focus on a different area of concern, and send out pictures from observatories in Arizona and the Canary Islands, all in order to watch the skies for signs of impending doom.
Those include a massive sun eruption, a collision with a rogue planet and an asteroid impact.
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"Rather than merely offer scientists' dismissals of the many silly doomsday scenarios that have now been heard by almost everyone in the world, and which have reportedly produced panic in Russia, Slooh will take a 'let's see for ourselves' attitude," said Astronomy Magazine columnist Bob Berman in a statement.
Meanwhile, Nasa continues to deny that the world is about to end - and has already published a video explaining why it didn't.
The space agency has long maintained a page explaining why the world is probably not going to be destroyed for several billion years.
David Morrison, an astrobiologist at Nasa Ames Research Centre, said there was no reason to worry.
"There is no true issue here," he said. "This is just a manufactured fantasy."
Morrison admitted that many people were genuinely concerned - and said he constantly receives emails and calls about the date. But said that panicking was unnecessary.
"While this is a joke to some people and a mystery to others, there is a core of people who are truly concerned," he said.
"I think it's evil for people to propagate rumours on the Internet to frighten children.
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