Mars collapse. In 2012, it was proposed that Valles Marineris is not just a graben, but a plate boundary where of transverse motion has occurred, making Mars a planet with possibly a two-tectonic plate arrangement. Images from the Thermal Emission Imaging System (THEMIS) aboard NASA's Mars Odyssey orbiter have revealed seven possible cave entrances on the flanks of the volcano Arsia Mons. The caves, named after loved ones of their discoverers, are collectively known as the "seven sisters". Cave entrances measure from wide and they are estimated to be at least deep. Because light does not reach the floor of most
How Much for Just the Planet? How Much for Just the Planet? How Much for Just the Planet? is a 1987 "Star Trek" tie-in novel by John M. Ford. In the novel, large deposits of dilithium are detected on a colony planet, and delegations are sent by the United Federation of Planets and the Klingon Empire to negotiate for mining rights (neither able to openly fight against the other because of the "Organian Lightbulbs", a reference to the Organians from the original series). They find the planet Direidi and its inhabitants to be very strange indeed. Planet inhabitants occasionally break into song to explain their narratives