Richard C. Hoagland is one of the biggest conspiracy theorist about NASA missions to the Mars and the Moon and his skeptical views about lost alien civilizations on the Moon and on Mars and other related topics, his writings claim that advanced civilizations exist or once existed on the moon, Mars and on some of the moons of Jupiter and Saturn, and that NASA and the United States government have conspired to keep these facts secret. He has advocated his ideas in two published books, several vide... View MoreRichard C. Hoagland is one of the biggest conspiracy theorist about NASA missions to the Mars and the Moon and his skeptical views about lost alien civilizations on the Moon and on Mars and other related topics, his writings claim that advanced civilizations exist or once existed on the moon, Mars and on some of the moons of Jupiter and Saturn, and that NASA and the United States government have conspired to keep these facts secret. He has advocated his ideas in two published books, several videotapes, lectures, interviews, and press conferences, his views have never been published in peer-reviewed journals. Hoagland has been labeled by James Oberg of The Space Review and Phil Plait of Bad Astronomy as a conspiracy theorist and fringe thinker, on this clip he challenges the credibility and genuinity of what NASA claims about Moon landing, the face on Mars and possible UFO encounters especially on Apollo missions, and accuses NASA of cover up, conspiracy and misinform about extra terrestrial civilizations, super intelligent ET, and what being left from an ancient civilizations on Mars and other solar system planets.