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Mars seen from Earth with the naked eye looks like a bright reddish pinpoint of light. Throw in a strong telescope and the details start to pop. Now reverse the perspective and you get NASA's Image of the Day from Friday: a view of the Earth and its moon from all the way over at Mars.
NASA used two separate exposures snapped by the Mars Reconnaissance Orbiter to create the image; otherwise the moon would have been too dark to see. NASA describes the orbiter as "the most powerful telescope orbiting Mars."
What's extra-cool about this far-off view is the amount of detail visible on Earth. That brownish splotch in the center is Australia.