Have a look at the following weblink, and definitely look at the little movies on the weblink page. Everything is explained at those little movies.

And when you have seen it, note the days in your agenda. Have a breath, and stay centered and connected with the lightbeings & God.

http://www.pakalertpress.com/2011/05/20/bad-news-from-nasa-proof-that-comet-elenin-is-affecting-earth-video/