| 2019 | |
| July 3 2019 | NEOCAM Mission |
| May 29 2019 | The Upcoming APOLLO Anniversary |
| Apr 25 2019 | Back to the Moon in 5 Years? |
| Mar 25 2019 | Plume on Bennu |
| Feb 12 2019 | North Pole is On the Move |
| Jan 14 2019 | Impact of China's Moon Landing on the US Space Program |
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| 2018 | |
| Dec 17 2018 | Wind Recording on Mars and Comet 46P |
| Nov 19 2018 | Humans to Mars in 25 years? |
| Oct 8 2018 | The DAWN Mission - Vesta & Ceres Observations |
| Sept 18 2018 | Tourist Trips to Space |
| Aug 13 2018 | NASA Solar Probe Launched |
| July 11 2018 | Hayabusa2 Will Grab a Rock from Asteroid Ryugu |
| Jun 11 2018 | Whatever Happened to the Moon Colony? |
| Apr 9 2018 | Mars InSight Mission |
| Mar 12 2018 | Elon Musk & Mars |
| Feb 8 2018 | Humans Living on Mars |
| Jan 3 2018 | Seismic Studies of Mars - Earthquakes? |
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| 2017 | |
| To Come | |
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| 2016 | |
| To Come | |
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| 2015 | |
| Apr 20 2015 | Mark Sykes, "Hunting for the Great White Spot" on Ceres |
| Feb 23 2015 | Mark Sykes Discusses Dawn's Approach to Ceres |
| Jan 12 2015 | Mark Sykes Discusses Rosetta Mission, Long-term Strategies for Space Exploration |
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| 2014 | |
| Dec 15 2014 | Mark Sykes Discusses Orion Mission, Comet Organics |
| Nov 24 2014 | Mark Sykes discusses Landing on Comets, DPS Conference |
| Nov 05 2014 | Dr. William Hartmann, author of Searching for Golden Enpires: Epic Cultural Collisions in Sixteenth-Century America |
| Oct 27 2014 | Mark Sykes Discusses Comets, Privatization of Space Travel |
| Sept 15 2014 | Mark Sykes Discusses Comets, Curiosity Rover |
| Aug 12 2014 | Mark Sykes Discusses NASA's Rosetta Mission |
| July 02 2014 | Mark Sykes Discusses NASA's Cassini Probe at Saturn |
| Jun 04 2014 | Mark Sykes Discusses Mars Exploration Opportunities |
| May 12 2014 | Mark Sykes Discusses Hazards of Space Junk, New Horizons Mission to Pluto |
| Apr 14 2014 | Mark Sykes Discusses Lunar Eclipse and the Future of Manned Space Exploration |
| Mar 10 2014 | Mark Sykes Discusses Newly Discovered Planets |
| Feb 10 2014 | Mark Sykes Discusses New Solar Discovery, Mars Curiosity Rover |
| Jan 13 2014 | Mark Sykes Discusses NASA's Research Program Reorganization, Chinese Moon Mission |
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| 2013 | |
| Dec 09 2013 | Mark Sykes Discusses Comet ISON, China's Lunar Rover |
| Nov 14 2013 | Mark Sykes Discusses Comet ISON |
| Oct 21 2013 | Mark Sykes Discusses the Federal Shutdown, Maven, Juno, Mars and Comet ISON |
| Sept 23 2013 | Mark Sykes Discusses the Deep Impact Mission, Lack of Methane on Mars |
| Sept 04 2013 | William Hartmann Discusses the Formation of Our Moon, Space Tourism and Mars Climate Change |
| Aug 19 2013 | Mark Sykes Discusses Curiosity, Opportunity, Cassini and the PSI Retreat |
| July 17 2013 | Mark Sykes Discusses the Proposed Asteroid Retrieval Mission and Future Space Exploration Opportunities |
| Jun 06 2013 | Mark Sykes Discusses the Challenges of a Trip to Mars |
| May 02 2013 | Mark Sykes discusses Mars, Saturn and the PSI Annual Fundraising Dinner |
| Apr 03 2013 | Mark Sykes discusses Mercury, Mars, sequestration and future space missions |
| Mar 05 2013 | Mark Sykes Discusses Asteroids and PSI's New Conference Center |
| Feb 06 2013 | Mark Sykes discusses big asteroid will give us close call |
| Jan 10 2013 | Mark Sykes discusses Earth-like Planets and China's Space Exploration Efforts |
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| 2012 | |
| Dec 11 2012 | Mark Sykes discusses MESSENGER discoveries on Mercury |
| Nov 06 2012 | Mark Sykes discusses the Effect of Elections on Space
Exploration, Mars Discoveries |
| Oct 18 2012 | Mark Sykes discusses Tracking Meteorite Falls Using Doppler Weather Data |
| Sep 05 2012 | Sykes discusses America’s space program at a crossroads. |
| Jul 30 2012 | Mark Sykes discusses MSL Mission, Pluto |
| Jun 25 2012 | Mark Sykes discusses Water Ice on the Moon, Mars |
| May 29 2012 | Mark Sykes discusses the upcoming Transit of Venus and
Private Enterprise in Space |
| Apr 23 2012 | Mark Sykes discusses Private Space Exploration |
| Mar 29 2012 | Mark Sykes discusses Arizona’s electronic billboard veto and PSI’s 40th anniversary. |
| Feb 20 2012 | Mark Sykes discusses the potential impact of proposed NASA budget cuts. |
| Jan 23 2012 | Mark Sykes discusses the current boom in new planet discoveries. |
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| 2011 | |
| Dec 29 2011 | Mark Sykes discusses Vesta, PSI’s 40th anniversary events in 2012. |
| Nov 25 2011 | Mark Sykes discusses the future of space travel. |
| Oct 17 2011 | Mark Sykes discusses ancient fossil life, Mars exploration and budget pressure on space exploration. |
| Sep 28 2011 | Mark Sykes discusses space exploration. |
| Aug 15 2011 | Mark Sykes discusses preparing to go into space with Atsa and the discovery of evidence of seasonal liquid water on Mars. |
| Jun 27 2011 | Mark Sykes discusses NEOs, Dawn mission. |
| Apr 27 2011 | Mark Sykes discusses NASA’s shuttle program, the future of space exploration. |
| Mar 1 2011 | Mark Sykes discusses Mars. |
| Jan 17 2011 | PSI’s Melissa Lane Discusses the Hunt for Meteors in Antarctica. |
| Jan 11 2011 | PSI’s Bill Hartmann and Mark Sykes appear. |
