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Phobos global view from Phobos 2, 25 March 1989 This view of Mars' moon Phobos (which is about 25 kilometers in diameter) was captured by the Phobos 2 mission on March 25, 1989. This was the last image that Phobos 2 acquired before contact was lost on March 27, 1989. Russian Academy of Sciences / Ted Stryk