Chemtrail in San Diego?

Question

In the last 4 months i have been noticing things falling from the sky. Amost like a jet dipping down and leaving a trail. But its not a plane or a jet at all. The trial in the sky would fall for 2 or 3 minutes, stops half-way and stays ther for 10 minutes before disapearing. I used to think it was a meterorite, so i always ike to watch it. Sometimes i would see 4 or 5 of them on the same day. In different places. Today i finally found out that all those bizare things i see in the sky are called CHEMTRAIL. Im kind of confused as to what they are. Are they man made chemicals? Are they harmfu? Are they from out of space? And does anyone in San Diego notice this too or is it just me?

Answer 1

Not to worry, those are just aliens..

Answer 2

http://en.wikipedia.org/wiki/Chemtrail