This is a moon? The 1978 Viking 1 orbiter took this picture of Mars' largest moon, Phobos. Astronomers don't know, but they suspect the satellite may be a captured asteroid.
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This is a moon? The 1978 Viking 1 orbiter took this picture of Mars' largest moon, Phobos. Astronomers don't know, but they suspect the satellite may be a captured asteroid. |
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