1.14.5 -- 2nd Hour appearance talking about the Hyugens Probe and a mysterious new hypothesis he planned to unveil in a week.
1.25.5 -- Uncredited 1st Half Hour appearance celebrating the birthday of the Mars Spirit Rover and touching on a plethora of topics. Claimed to unveil his mystery hypothesis very soon.
2.11.5 -- Majority of 1st Hour, discussing his new theory re: Jupiter's moon Iapetus and taking phone calls.
2.16.5 -- 1st Hour appearance, discussing dueling "life on Mars" announcements, Cydonia, Mars History.
2.18.5 -- Brief 1st Hour Appearance, talking about NASA's denial of the "life on Mars" story from Wednesday.
2.22.5 -- Brief appearance as a caller, talking with Jolene Blalock of UPN's series Enterprise.
2.23.5 -- Full episode appearance with astronomer David Darling to discuss, in full, his Iapetus theory.
3.9.5 -- Brief appearance at the beginning of the first hour to touch upon the announcement that NASA was turning off the Voyager probes.
3.16.5 -- 1st Hour Appearance, discussing the new NASA administrator and more on his Iapetus theory.
3.29.5 -- 1st Hour Appearance, talking about Iapetus, Coral Castle and announcing an impending conference for sometime this summer.
4.8.5 -- 1st Half Hour and top of 2nd Hour, live from Coral Castle. Talking about how he wired the place and the partial solar eclipse earlier in the day.
4.11.5 -- Brief appearance as a caller, talking with Ray Bradbury about their meeting at JPL and Bradbury's inspiration for "The Martian Chronicles".
4.25.5 -- Brief appearance on the 2nd half of the hour to celebrate his 60th birthday.
4.27.5 -- 1st Hour appearance talking about Titan, alleging an impending big NASA announcement, Jordan Maxwell and other space news.
4.29.5 -- 2nd half of 2nd Hour, talking about the announcement of the discovery of an exoplanet and takes more potshots at Phil Plait.
6.2.5 -- Brief first hour appearance talking about the news that someone had been arrested for the murder of Eugene Mallove.
6.3.5 -- Called in to wish George Noory a Happy Birthday.
6.17.5 -- One of the many classic C2C guests who stopped by to talk wish Art Bell a Happy 60th Birthday.
6.23.5 -- Participant in, and organizer of, the "God, Man, and ET" Roundtable.
7.4.5 -- A member of the rotating guests featured on the "Deep Impact" Special. Appeared in the 3rd and 4th hours of the show. He also discussed his blog and War of the Worlds.
7.8.5 -- Brief pop-in during Hour 3 to allege a "black out" by JPL re: the Deep Impact data.
7.18.5 -- Brief 1st hour pop-in to discuss the ongoing problems with the Discovery Launch.
7.19.5 -- Brief 1st hour pop-in to discuss the death of James "Scotty" Doohan of Star Trek fame.
7.22.5 -- 2nd hour Friday night appearance, touching on his 20 years studying space anomolies, NASA covering up Deep Impact, and NASA in general.
7.26.5 -- Brief 1st hour appearance reacting to the launch of the Space Shuttle Discovery.
7.27.5 -- Brief 1st hour appearance to talk about NASA's grounding of the shuttle and potential damage to the Discovery Shuttle when it launched.
7.28.5 -- Brief 1st hour appearance to speak with Star Trek's Chekov, Walter Koenig.
7.29.5 -- 2nd half of the 1st hour discussing the discovery of a 10th planet and updating the Shuttle situation. He predicts that the astronauts will be staying an extra day at the space station and that it would be announced "tomorrow".
8.1.5 -- Appearing at the top of the show to discuss the mission to repair the Columbia.
8.2.5 -- Appearing in the middle of the 4th hour to discuss the secret message sent to him via NASA when they played the "Enterprise" theme song.
8.3.5 -- Brief 1st hour appearance to talk about the successful Discovery repair mission.
8.4.5 -- Top of show appearance to talk about the problems with the Discovery's thermal blanket and the impending return of the shuttle.
8.5.5 -- Appearing in the middle of the show to talk about the Discovery shuttle undocking from the space station and heading back to Earth.
8.7.5 -- Full episode appearance talking about the impending landing of shuttle Discovery and also to talk about future Space Propulsion.
8.8.5 -- Brief 1st hour appearance to talk about the final stages of the landing of Discovery. They also talked about how the Shuttle may land somewhere other than in Florida.
8.9.5 -- Brief 1st hour appearance to discuss the successful landing of Discovery.
8.11.5 -- Brief 1st hour pop-in to talk about the post-Discovery NASA plans.
8.18.5 -- Reacting to news that Discovery would be the next Shuttle to be launched and it would be in March 2006.
8.23.5 -- Appearing at the top of the 2nd hour to introduce George Haas and William Saunders. He would go on to "host" the middle hour of the interview and did an excellent job at it.
8.23.5 -- Impromptu appearance in the 3rd hour to debate guest Eric Hufschmid about the Moon Landing Hoax. RCH stayed for the remainder of the show.
8.30.5 -- Appearing throughout the show to comment on Hurricane Katrina. Also guested for the full final hour.
8.31.5 -- Appearing every half hour giving updates on the Katrina recovery effort.
9.1.5 -- Appearing every half hour to lament the lack of help coming to Katrina's victims.
9.2.5 -- Appearing every half hour to update on recovery efforts and further the "weather war" theory.
9.3.5 -- Stuns the C2C audience by appearing on Saturday night with Ian Punnett to continue his coverage of Hurricane Katrina. Alleges more shadowy doings by the feds. Shows up in final hour as well.
9.20.5 -- First hour appearance discussing NASA's announcement of their new Moon Mission.
9.22.5 -- Starred in the final half hour of "An Evening of Commentary", a C2C special episode. He promised to unveil some "evidence" re : Katrina.
9.23.5 -- First hour appearance talking about his "evidence" that Hurricane Katrina was manipulated by shadowy forces.
9.28.5 -- First hour appearance to respond to the NASA chief saying the "Shuttle was a mistake".
10.16.5 -- First hour appearance talking about the "weather war" and Hurricane Ophelia.
10.19.5 -- Around the 3rd hour, called in during the special "Earth Changes Roundtable".
10.28.5 -- Second hour appearance talking about Mars, abiotic oil, parallel universes and other stuff.
11.8.5 -- Full episode appearance as organizer and member of the "Intelligent Design Debate" with Mike Heiser and Stan Tenen.
11.15.5 -- First hour pop-in to discuss news of the Japanese asteroid probe.
11.23.5 -- First hour pop-in to provide an update on the Hayabusa probe.
12.6.5 -- Pop-In during the show to talk about Project Serpo and how it may relate to his "hyperdimensional physics" theory.
12.7.5 -- Pop-In during the show to talk about the Hollow Moon theory and to weigh in on what it may mean to him.
12.14.5 -- First hour pop-in for another update on Hayabusa and also Richard Branson's plan for a space port in New Mexico.
* Hoagland's 12.27.2002 appearance was replayed on 5.7.5 and does not count towards the 2005 appearance total.
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