An asteroid never passed dangerously close to earth in 2004, where on earth did you hear that?
If it had passed "Dangerously close" it would have probbably weireded out the moons orbit, not to mention it would have been all over the media. If you have a site or something, tell me. Caz I've never heard of this.
Do some recerch, It happened and the astroid floated within 5000 miles of earth. Its not big enough to alter the moons orbit. Its like the sise of Long Island.
Hmm.. A Meteor that passed really close to earth in 2004, sircles around the Sun and will "attack" the Earth again after 7 years, 2011? I've never heard of that, but you're maybe rigth.. I guess. But if it was really close, I should have know of it, if NASA isn't trying to hide it, tho :P Anyways, I don't think any of the Meteors will hit the Earth.. (YAY!)
If its the size of Long Island then I don't know what your crying about. For one, if it started bombing down on us like a warhead half of it would burn, and it would cause serious damage but nothing serious. The predicted dino asteroid was biggerer. Also, the moons 238,000 Miles away. That means it floated INSIDE the distance from the moon and the earth. I fine that unbelievable that it was THAT close. I don't know where you got this information from.
[Also, I did ask for you to give me a site if you have one]
And i find it unbelevible that one crashed into the earth in the time of the dinoes i hapens every once and a while. It's called a mass extincion.
it doesn't star burning untill it hits the atmosphere. Theres no air in space duh. Thats why you dont need to waste fuel on the rovers and pioneirs and stuff unless you want to change direction which gravity already does.