Region
United States
57
Mars (Planet)
48
Moon
22
Outer space
17
Earth (Planet)
12
Sun
12
Solar system
7
Antarctica
5
Chesapeake Bay (Md. and Va.)
3
Chesapeake Bay Region (Md. and Va.)
3
Halley's comet
3
Jupiter (Planet)
3
Tropics
3
Venus (Planet)
3
Deep space
2
Epsilon Aurigae
2
États-Unis
2
Greenland
2
MARS (PLANET)
2
MOON
2
Pacific Ocean
2
Saint Helens, Mount (Wash.)
2
Saint Helens, Mount, Region
2
Washington (State)
2
États-Unis
2
Africa, Southern
1
Antarctic regions
1
Atlantic Ocean
1
Chesapeake Bay
1
Chesapeake Bay Region
1
Chesapeake Bay region (Md. and Va.)
1
Columbia Plateau
1
Europa (Satellite)
1
Halley, Comète de
1
Kohoutek comet
1
Mercury (Planet)
1
Mojave Desert (Calif.)
1
North Atlantic Ocean
1
Saturn (Planet)
1
Soleil
1
Southern Hemisphere
1
Southern States
1
Titan (Satellite)
1
Wilson comet
1
Wilson's comet
1