On the Expeditions blog: Problems Without Passports: Scientific Research Diving at USC Dornsife–Making a Difference: Environmental Students in Palau by Patrick Talbott and Gabrielle Roffe.
On the Guest Blog: Thorium, Polonium, Radium, Oh My! Marie Curie and Maggie Gyllenhaal Kick Off the 2011 World Science Festival by Neda Afsarmanesh.
Also on the Guest Blog: Too Hard for Science? Joan Slonczewski–Reshaping Ourselves for Our Changing World by Charles Q. Choi.
And on ‘Cross-Check’, John Horgan has a new post – Don’t Believe Scare Stories about Cyber War.