Interested in science writing or editing?  Harvard has a number of undergraduate-run publications centered around science.  

• Brevia, a publication by the Harvard College Undergraduate Research Association, publishes brief articles about science that are written to be accessible to a wide audience.
• Harvard Science Review brings the latest advances, the most controversial debates, and the most intriguing questions in science to a wide readership.
• The Harvard Undergraduate Research Journal (THURJ) is a biannual publication that promotes undergraduate research by publishing undergraduate research and highlighting relevant advancements in the scientific community of Harvard University.
• The Harvard Brain is an undergraduate journal of musings on the mind at Harvard University.