• PBS NOVA, ScienceNow: CERN's Large Hadron Collider (mp3), July 2007
• PBS The Charlie Rose Show, Interview on Multi Dimensions, December 12, 2006
• Evergreen News Radio (Seattle, WA), with William Lowe, May 30, 2006
• WNYC New York Public Radio, Studio 360 with Kurt Andersen (mp3), May 26, 2006
• NHK (Tokyo, Japan), The Proposal for the Future: Interview with Dr. Koichi Wakata, May 21, 2006
• KDVS (UC Davis, CA), This Week in Science, May 9, 2006
• Talk Radio Network NY, Science Fantastic with Dr. Michio Kaku, April 29, 2006
• WGBH Radio Boston, Open Source with Christopher Lydon (mp3), April 26, 2006
• KLUV-FM Dallas TX, The Morning Show featuring Jody Dean, April 24, 2006
       segment 1 (mp3)
       segment 1 (mp3)
• WGBH ThoughtCast, Arts and Ideas, Interview with Jenny Attiyeh (mp3), April 10, 2006
• World Talk Radio, Science and Society with Dr. David Lemberg (mp3), April 5, 2006
• WNYC New York Public Radio, The Leonard Lopate Show (mp3), March 29, 2006
• The Planetary Society, Planetary Radio with Mat Kaplan (mp3), March 18, 2006
• Discovery Channel Canada, Daily Planet with Jay Ingram, March 1, 2006
• CTV Southwestern Ontario, Province Wide with Daiene Vernile, March 1, 2006
• CITY-TV, (Toronto, Canada), Breakfast Television with Kevin Frankis , March 1, 2006
• Coast to Coast AM, with Art Bell, February 25, 2006
• KABC (Los Angeles, CA), The Mr. KABC show, Feb 13, 2006
       segment 1 (mp3)
       segment 2 (mp3)
       segment 3 (mp3)
       segment 4 (mp3)
• KPCC (Los Angeles, CA), AirTalk with Larry Mantle (Mp3), Feb 13, 2006
• World Talk Radio, Science and Society with Dr. David Lemberg (Mp3), Feb 8, 2006
• KDVS (UC Davis, CA), This Week in Science, Feb 7, 2006
• WGN (Chicago, IL), The John Williams Show (Mp3), Feb 2, 2006
• KALW (San Francisco, CA), Your Call with Mary Ambrose and Rebecca Roberts (Mp3), Jan 30, 2006
• WICN (Worcester, MA), Inquiry with Mark Lynch (Mp3), Jan 29, 2006
• Chicago Public Radio, New Views of the Universe: Extra Dimensions, Dark Energy and Cosmic Adventures, Jan 22, 2006
• World Geneva Radio, Kathleen Anderson, Jan 19, 2006
• C-SPAN2 Book TV, Jan15 and 16, 2006
• WBAI-NY, Jan 13, 2006
• U-WIRE (Davis, CA), Michael Miller (pdf), Jan 9, 2006
• KXJZ's Capital Public Radio (Sacramento, CA), with Jeffrey Callison (Mp3), Jan 9, 2006
• WBUR (Boston, MA),The Universe's Hidden Dimensions, with Bob Oakes (Mp3), Dec 2005
• The Michael Medved Show, Dec 2005
       segment 1 (Mp3)
       segment 2 (Mp3)
       segment 3 (Mp3)
       segment 4 (Mp3)
       segment 5 (Mp3)
• KXXT (Phoenix, AZ), with Charles Goyette (Mp3), Dec 2005
• WABI (Chicago, IL), with Harry Allen, Dec 2005
• WTKK (Boston, MA), with Michael Graham, Nov 2005
• American Antigravity, with Tim Ventura (Mp3), Nov 2005
• WGBH Channel 2 (Boston, MA), Greater Boston with Emily Rooney, Nov 2005
• CBC Radio (Canada), Quirks and Quarks with Pat Senson (Mp3), Oct 2005
• KALW (San Francisco, CA), West Coast Live with Sedge Thompson, Nov 2005
• KUSP (Santa Cruz, CA), Talk of the Bay with Robert Pollie , Nov 2005
• WBNW (Needham, MA), Pages to People with Rob Mitchell Show, Oct 2005
        segment 1 (Mp3)
       segment 2 (Mp3)
       segment 3 (Mp3)
• WABC (New York, NY), The John Batchelor Show, Oct 2005
       segment 1 ( Mp3)
       segment 2 (Mp3)
• CN8, New England News Makers with Sarah Zapp, Oct 2005
• National Public Radio, Talk of the Nation: Science Friday with Ira Flatow (Mp3); also pdf, Sept 2005
• KERA-NPR (Dallas, TX), The Glenn Mitchell Show, Sept 2005
• ABC (Channel 5), CityLine with Karen Holmes Ward, Sept 2005
• NECN (Boston, MA), Good Morning Live (Real Player), Sept 2005
• ABC Radio National (Australia), The Science Show (pdf), Aug 2005
• ABC Radio National (Australia), The Mark Colvin Show (Mp3), Aug 2005
• BBC, Live at Five, part 1 (Mp3), July 2005
• BBC, Live at Five, part 2 (Mp3), July 2005
• BBC, Start the Week (RealPlayer), June 2005
• BBC, Science and Nature: Parallel Universes, February 2002