9 Incredible Pictures of City Lights From Space

The NASA Earth Observatory captures unbelievable photos that show just how electric our world really is.

By Emma Kapotes
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NASA Earth Observatory

Baltimore, Maryland

Population Density: 7,672 people per square mile.

More: Watch NASA's video of Earth at Night:

NASA Earth Observatory

Buenos Aires, Argentina

Population Density: 15,168 people per square kilometer.

NASA Earth Observatory

New York, New York

Population Density: 27,000 people per square mile.

NASA Earth Observatory

Doha, Qatar

Population Density: 3,394 people per square kilometer.

NASA Earth Observatory

Istanbul, Turkey

Population Density: 2,666 people per square kilometer.

NASA Earth Observatory

Las Vegas, Nevada

Population Density: 4,376 people per square mile.

NASA Earth Observatory

Milan, Italy

Population Density: 1,954 people per square kilometer.

NASA Earth Observatory

San Francisco, California

Population Density: 17,179 people per square mile.

NASA Earth Observatory

Shanghai, China

Population Density: 2,978 people per square kilometer.

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