Phil Plait is American astronomer and runs the website BadAstronomy.com. He received his Ph.D. from the University of Virginia in 1994 and formerly worked at the physics and astronomy department at Sonoma State University.
Q&BA on Phil Plait’s blog: What happens if you are exposed to the vacuum of space?
“What would happen to the human body exposed to the vacuum and cold of space?”
The whole topic on BadAstronomy blog here: http://blogs.discovermagazine.com/badastronomy/2012/01/31/qba-what-happens-if-you-are-exposed-to-the-vacuum-of-space/
Phil Plait on Google+ https://plus.google.com/108952536790629690817/posts
and on Twitter http://twitter.com/#!/BadAstronomer