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
The Angry Red Planet CineMagic process: "Our set for the planet Mars cost us a couple of hundred dollars instead of the thousands we had estimated". Pink also estimates in that interview that the movie "will be made at half the original cost", confirming that "Invasion of Mars" (the film's working title before its release) was a low-budget project. The "meager" $200,000 production budget cited for "The Angry Red Planet" may therefore be a credible ballpark figure. Filming for "The Angry Red Planet" began on September 9, 1959 at Hal Roach Studios in Culver City, California, only a month after Melchior and Pink completed