Click on the following link to view the pages in this circle: http://goo.gl/E9eJz.
If you have a science related degree, you are a science journalist, you are a K-12 science teacher, or you curate a science page, then add your profile/page to the database (http://goo.gl/vOJoN). Please note that you also have to circle Science on Google+: A Public Database if you would like to be considered for shared circles.
View underlying database: http://goo.gl/Yz8KR
View most recent shared circles: http://goo.gl/nO7rB