To whom it may concern: All posts made on Google+ under Col. Chris Hadfield's name are done so by his son, Evan.
The original posts and photographs
come from twitter (which is updated by Chris directly), and are then distributed here in a timely fashion.
Certain comments and messages are sent via direct messaging to Chris for response, and then reposted here.
All messages that originate or are direct quotes from Chris will be presented in bold.