7
Yeah, good to see you back!
Heres the list off RSS feeds I currently use.
http://rss.news.yahoo.com/rss/science
http://universetoday.com/universetoday.xml
http://news.bbc.co.uk/rss/newsonline_uk_edition/sci/tech/rss091.xml
http://www.nature.com/nsu/rss.rdf
http://www.sciencedaily.com/newsfeed.xml
Yahoo! offers a bunch, so be sure to check out the rest of the feeds there. Nature has a few catagories as well.