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Is Mars Habitable? – E-bok 9789127450622 men Ingvild tyckte inte omFew persons except astronomers fully realise that of all the planets of the Solar system the only one whose solid surface has been seen with certainty is Mars. In 1907, Alfred Russel Wallace wrote the short book Is Mars Habitable? in response to Professor Percival Lowell's book Mars and its Canals. The latter seemed to invalidated the claims Wallace made in his 1902 book Man's Place in the Universe, in which he came to the conclusion that Mars was not