The following document(s) are now available from the NSF Online Document System. Oxygen on Earth: 50 to 100 Million Years Earlier Than Scientists Thought URL : http://www.nsf.gov/publications/pub_summ.jsp?ods_key=pr07127 Type : News Releases Subtype : Biology Subtype : Geosciences 2007 Science and Engineering Visualization Challenge Winners Announced URL : http://www.nsf.gov/publications/pub_summ.jsp?ods_key=pr07126 Type : News Releases Subtype : Biology Subtype : Geosciences =============================================== MyNSF (formerly Custom News Service) http://www.nsf.gov/mynsf/ Please send questions and comments to webmaster@xxxxxxx