Volcanology of Mars through the crust to produce volcanic mountains. However, the largest volcano on the planet, Olympus Mons, is thought to have formed when the plates were not moving. Olympus Mons may have formed just after the plate motion stopped. The mare-like plains on Mars are roughly 3 to 3.5 billion years old. The giant shield volcanoes are younger, formed between 1 and 2 billion years ago. Olympus Mons may be "as young as 200 million years." Norman H. Sleep, professor of geophysics at Stanford University, described how the three volcanoes that form a line along the Tharsis Ridge may be extinct
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