Slashdot writes, Reader SternisheFan links to a press release at UCLA, and excerpts from it another bit of Mars news: "For years, many scientists had thought that plate tectonics existed nowhere in our solar system but on Earth. Now, a UCLA scientist has discovered that the geological phenomenon, which involves the movement of huge crustal plates beneath a planet's surface, also exists on Mars. 'Mars is at a primitive stage of plate tectonics. It gives us a glimpse of how the early Earth may have looked and may help us understand how plate tectonics began on Earth,' said An Yin, a UCLA professor of Earth and...