William Lowell Putnam any dramatic changes in the Observatory's staff or location. Thus, an Observatory expedition and possibly a permanent move to South America was postponed, effectively establishing the Observatory in Flagstaff, Arizona. Despite his conviction that he should not make any major changes to the Observatory, Putnam did become embroiled in the controversy surrounding T. J. J. See. See was employed at Lowell Observatory at that time, but was both an extremely unpopular man and also regarded as a bad scientist. Three Observatory employees had already resigned due to See's poor treatment of them, and Douglass began working to remove See from
Lowell (Martian crater) then started observing Mars intensively for years. He used the observatory and his large refractor telescope to discover over 500 canals on Mars. Lowell promoted the idea that they were constructed by an intelligent race of Martians. However, when pictures were received from spacecraft, the canals were found to be optical illusions. Nevertheless, much of the later interest in Mars exploration resulted from the efforts of Lowell. Lowell (Martian crater) The Lowell Crater is a large impact crater on Aonia Terra in the Thaumasia quadrangle of Mars. The crater is about 203 kilometers (127 miles) in diameter. Lowell Crater has