Billions of years ago, Earth may have been shrouded in a blanket of atmospheric haze like that seen on Saturn's moon Titan, providing organic material that nourished our planet's earliest life forms, researchers said Monday.

Some scientists look to Titan as a model for what early Earth's atmosphere may have looked like.

for more:
http://www.msnbc.msn.com/id/15594659/

Hi DA,

Interesting. The atmosphere has certainly changed over time and this gives us some hints along those lines.

By the way, did you checkout the linked slide show about half way down the page that you cited? There are some interesting images in it.

Dr. R.

I did indeed. I hope others read your note and do too.