Search results
Results From The WOW.Com Content Network
Semper Mars: Book One of the Heritage Trilogy is a military science fiction novel by American writer Ian Douglas. It is the first novel in the Heritage Trilogy . Plot introduction
The events of the Heritage Trilogy span from 2040 to 2067. In Semper Mars, evidence of an alien civilization that may have intervened in human evolution threatens to throw the Earth into chaos and war when discovered by scientists in the subterranean ruins on Mars.
The hypothesis also speculates that artifacts from past civilizations could be found on the Moon and Mars, where erosion and tectonic activity are less likely to erase evidence. The concept of pre-human civilizations has been explored in popular culture, including novels, television shows, short stories, and video games.
Popular belief in thriving alien civilisations elsewhere in the solar system still remained strong until Mariner 4 and Mariner 9 provided close images of Mars, which debunked forever the idea of the existence of Martians and decreased the previous expectations of finding alien life in general. [141]
For premium support please call: 800-290-4726 more ways to reach us
1975: Graham Cairns-Smith (a biochemist who suggested that the ancestors of humans might have had alien biochemistries and presented evidence to support this possibility in a biological research journal) [108] 1975: Serge Hutin (book, Alien Races and Fantastic Civilizations) 1976: Robert K. G. Temple (book, The Sirius Mystery)
For premium support please call: 800-290-4726 more ways to reach us
The Kardashev scale is a speculative method of measuring a civilization's level of technological advancement, based on the amount of energy a civilization is able to utilize. [11] The Drake equation is a probabilistic framework used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way galaxy. [12]