Based on: http://discovermagazine.com/2008/whole-universe/30-how-a-cloud-of-dust-could-wipe-out-life-on-earth
How a Cloud of Space Dust Could Wipe Out Life on Earth.
The dust I am talking about isn't actually dust that we know of in our own homes. It's actually dust in space, that is in the form of a cloud, containing different gases, dust and so on and being much denser than the space we live in now. It would destroy all life on Earth by the cloud moving onto covering the sun, reducing the suns influence on our planet. The cloud would then move towards Earth's orbit, deteriorating the oxygen in Earth's upper atmosphere. The Cosmic Rays that the cloud would bring along with it, would begin to tear the Earth's atmosphere apart until there was none left. The cloud would eventually make Earth naked of all types of life. All though you shouldn't worry because this Cloud could come no where near to occurring in a humans lifetime. This wouldn't occur for another millenia at least.
Who this would Impact.
The only way this worry's me is if it could ever occurred in the next couple of hundreds of years. I think astronomers should widen their view on things like this instead of just meteors and asteroids. When and if this does happen, it will eventually just kill humans off because of the lack of oxygen in the atmosphere and because the ozone will soon be destroyed. When this does happen there will be no more ice age occurring, no more starting over because there will be no more ozone to host a place for lifeforms. When this does happen in millions and millions of years from now I believe there will be enough technology to figure out to prevent this. Also a big theory is that the sun could move closer to the planets and swallow and heat earth up so much that there will not be anymore life. This could be before Space Dust ever meats our planets orbit.
