Humans always thought they live in the end times. I personally think its because people think they are special and life cant go on without them subconciously. Its not logical to think I live at the end of human existence. In the millions of years human race existed how high is the chance to be born at the end of it ?

Virus or nuclear war are my bets.

Aliens seem unlikely to me, we would be able to adapt to flooding (lots of death, but not annihilation), and haven't you seen armageddon? Oil miners will save us from any asteroids.

@Marks

virus is unlikely. There will be always survivors on Islands or Arctica or jungle. Same goes for nuclear war. It would just throw hunanity into the stoneage. People dying in their 20s is no reason for humanity to be extinct. Even if every one would be HIV Positive Humanity would survive. Even if the radiation would be everywhere high humanity would survive . We would die with 25 and 8 of 10 babys would die but thats nothing we havent survived before. It would really need a massive change. Humans are afterall the most flexible creatures ever.Through technology they are even harder to wipe out then before.

Yeah I guess that's true. It would be pretty damn hard for a virus/bomb to kill every single living person. 

Maybe the best bet would be an asteroid then. One big enough to destroy the entire Earth in one blow. That seems more likely than Alien invasion which could be another way every single person dies (advanced alien weapons!). 

Biblical rapture could be the way it ends too depending if God really does exist or not.

Damn so many possibilities. 

God is an alien being, he is not from this world. He came down and genetically created humans to become slave beings to gather precious minerals and once his needs were met, he ascended into the heavens on his chariot of fire (spaceship). When he comes back to this world, humans will misinterpret him as a malicious being and attack with nuclear weapons. This will lead to the killing of our savior, who only came to take us to his world. Nuclear fallout will cause viruses to mutate into super viruses. Death roams the lands. Our wold is about to end and we have no way out. Our sun is expanding, polar ice is melting. The earth's whole weather system is thrown out of whack. sickness is rampant, natural disasters are more frequent. Andromeda and The Milky Way approach and start to merge. Our galaxy starts getting pulled into Andromeda.Disruption of gravity throws plasma from the Sun into the Earth. Asteroids pummel the earth from every direction as the galaxies merge. Our Earth gets stripped naked. Earth is now like Mars. Uranus' orbit gets pulled closer to the sun. Uranus starts to flourish with life. Other Alien beings play the hand of god.

So yeah... pretty much all of the above

The Mayan Calendar thing was invented in 1992 by Michael D. Coe largely to sell his book released that year called "Breaking the Maya Code". There was never a Maya Apocaypse prophecy until the 1990's, and it was made up by an American author specifically to sell books to idiots.

I also don't think war, disease, hunger, or natural disasters are a sign of the Apocalypse since those have happened all throughout history. 70 years ago World War 2 killed off tens of millions of people, before that in the 1800's the Tai Ping Revolution killed off over 20 million people, and the accompanying starvations and diseases killed off another 180 million. Before that, in the 1660's, a plague killed massive numbers of people in Europe, and London burned to the ground. Still before that a greedy family by the name of D'Medici defied Christianity to the point of excommunication, but almost in the same breath of history they bought the office of the Pope, had two Medici Popes who used the Catholic Church as a business to sell indulgences to people... Ultimately leading to the rise of Protestantism and the destruction of the Catholic Church's integrity. Natural disasters? Do I need to remind anyone that these have frequently happened, not just since the beginning of history, but since the beginning of Earth billions of years ago?

If anything is going to ruin the Earth, it will be poisoning by pollutants, and the desctruction of natural methods of clearing it up; such as the tropical jungles and rainforests.

Lol @ God will come and save us. Sure....

Thats not gonna happen in at least 500 years

God will save us