logy is a trilogy of science fiction novels by the Polish writer Jerzy Zulawski, written between 1901 and 1911. The first volume, On the Silver Globe, describes, in the form of a diary, the story of a marooned expedition of Earth astronauts who found a colony on the Moon. After several generations, they lose most of their knowledge and are ruled by a religious cult. The second volume, The Conqueror, focuses upon the colonists' anticipated Messiah, another traveler from Earth. After initial success, he fails to meet their expectations and is killed in an allegory to the death of Jesus Christ. The third volume, The Old Earth, describes the visit of two Lunar colonists to 27th-century Earth. It is ones of the early works of science fiction, long recognized as an influential work that has not previously been available in English.

Jerzy Zulawski (1874 - 1915) was a Polish literary figure, philosopher, translator, alpinist and nationalist whose best-known work is the science-fiction epic, Trylogia Ksiezycowa (The Lunar Trilogy), written between 1901 and 1911.In a twenty-year writing career, from his first book of poems in 1895, at the age of 21, to his final World War I dispatches in 1915, Jerzy Zulawski created an impressive body of work-seven volumes of poetry, three collections of literary criticism, numerous cultural and philosophical essays, ten plays and five novels. He was considered an important and influential intellectual figure in the early years of the 20th century, but a century later, the only creation which has remained in print and assured him literary immortality is The Lunar Trilogy. Stanislaw Lem described reading, The Lunar Trilogy as "one of the most fascinating and life-changing experiences" of his youth.