Past Thomas Brennan Award recipients . Nomination Guidelines . ... A summary of professional information relevant to the Brennan Award must be included with the nomination and support letters. Nominations . ... The Award . ... Brennan Award Nominations . ... Alternately, submit the nominations form online and send your nomination letters, letters of support, and any other information via email as attachments, to awards {at} astrosociety.org with the nominee?s name on the subject line. ...