• 1981–1982:
WRC-TV assignment editor/production assistant in Washington, DC • 1983:
KQTV anchor/reporter/producer/photographer/editor in St. Joseph, Missouri • 1983–1985:
WNYT anchor/reporter/producer in Albany, New York • 1985–1986:
WTSP special segment reporter/producer in
St. Petersburg, Florida • 1986–1991:
WNEV/WHDH general assignment reporter/anchor in Boston • 1991–1992:
Monitor Channel freelance producer/reporter/anchor in Boston • 1992–2008:
CNN space/aviation correspondent; "Science and Technology Week" anchor; "Science and Technology" correspondent/anchor; "CNN Live From" anchor, "CNN Saturday/Sunday Morning" anchor; "CNN Headline News Prime" anchor; "CNN American Morning" anchor in Atlanta and New York • 2008–present: owner Miles O'Brien Productions, LLC in Washington, DC serving as correspondent/writer for
Discovery Science "Innovation Nation" series;
WNET "Blueprint America" series; and video productions/moderation of events for clients including
McAfee, SAP,
X-Prize Foundation, Medco, Astrogenetix, and the
Rocket Racing League • 2009–2011: co-founder/host Spaceflight Now shuttle webcasts from Florida • 2009–2011: chairman Education and Public Outreach Committee of
NASA Advisory Council in Washington, DC • 2009–present:
PBS Frontline writer/correspondent for "Flying Cheap," "Flying Cheaper," "Nuclear Aftershocks," and "Dollars and Dentists" in Boston, MA • 2009–present:
National Science Foundation correspondent for “Science Nation” science correspondent/producer in Washington, DC • 2013–present:
PBS Nova producer/director "Mind of a Rampage Killer," "Manhunt: Boston Bombers," and "Megastorm Aftermath" in Boston, MA • 2014–present:
CNN aviation analyst ==Personal life==