mine will probably be the most mind-blowingly odd. you have been warned.
Earth is not the only human inhabited planet. many other planets are inhabited by humans who deny their existence to earth. NASA is a fraud, they are just trying to convince people that they ARE alone, and as it turns out, earth is just an inter-generational penal colony. the people on the other planets could easily destroy the Texas sized asteroid, but don't really care what happens to us, since we are just criminals. the people on the other planets are more technologically advanced, and cloak their planet, making it look empty. the rovers we send there are actually just on a set, here on earth. if anyone sees through this, they are bribed severely, and if that doesn't shut them up, they "disappear." these other people are also vampires. they send their people to earth to wreak havoc upon it in the form of Nazis, Republicans, and Osama Bin Laden.
I just denied the moon landing, accused republicans of being aliens and vampires, accused everyone on earth of being felons, and gave a paranoid explanation for why people disappear in one paragraph. BOOM!
also, the African nation of Chad is just a fenced off area containing a guy wearing a sweatervest.