Sean Raymond is an astronomer at the Laboratoire d'Astrophysique de Bordeaux in Bordeaux, France. His research focuses on the formation and orbital evolution of planets both in the Solar System and extra-solar planetary systems. His blog is called planetplanet.net, all about different ideas related to planets and life. He tries to keep it understandable for anyone interested in science. Sean also enjoys hanging out with his sons Zack and Owen and wife Marisa (see their out-of-date blog here), playing ultimate Frisbee, cooking, hiking, skiing, snowshoeing, Irish music, disc golf, and ridiculous things of all kinds.