Mars, our next-door neighbor in the solar system, hasn't given up many of its secrets yet.
MSN: Curiosity aims to unlock Mars mysteries - Technology & science - Space - Space.com | NBC News
We slept the soundest when our next-door neighbor was a state police officer and parked his patrol car out front.
FORBES: Am I Safer If My Neighbor Has A Gun?
Then I saw our next-door neighbor walk out of the lift.
NEWYORKER: Naima
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