Studying Lights Viewing the Earth from space can teach us many things.
Satellites are able to take pictures of our planet at night, as well as in daylight.
At night, the lights of big cities shine brightly enough to be seen in satellite photos. Such pictures can tell us which places on Earth are most populated. Learn how satellites help us see the Earth in important ways. Now look at the map of the United States. Locate Montana on the map of the United States.