Richard C. Hoagland

Richard Hoagland is a contributor of astronomical theories, especially concerning Mars and extraterrestrial life. While Hoagland's books have sold very well, many scientists have reduced his theories to mere pseudoscience and very few scientists trust his theories.

His jobs have included:

Hoagland has made numerous claims about the existence of extraterrestrial life which he believes is supported by the presence of the face on Mars. He claims that the face was part of a city built on Cydonia Planitia by a race of aliens. The "city" apparently consists of very large pyramids and mounds arranged in a geometrical pattern, with the ratios between measured angles roughly equalling mathematical constants like pi, e and the square root of two.

Hoagland has been a guest on CNN, BBC, UFO Evidence & Conspiracy, Mysteries in Space, and he is a frequent guest on Coast to Coast AM.

Some of his more well known theories include:

However, these are not all entirely his.

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