Region
United States
415
Outer space
36
Earth (Planet)
15
Mars (Planet)
14
Moon
14
Solar system
6
Sun
6
California
4
Southern States
3
Antarctica
2
Jupiter (Planet)
2
Moffett Field
2
Saint Louis (Mo.)
2
Soviet Union
2
Africa
1
Arctic regions
1
Baltimore
1
Canada
1
Caribbean Area
1
Central Valley
1
Colorado
1
Deep space
1
Delta (Region)
1
Eros (Asteroid)
1
Halley's comet
1
Juan de Fuca Ridge
1
M87 (Galaxy)
1
Marsh-Billings-Rockefeller National Historical Park (Vt.)
1
Maryland
1
Mississippi
1
New York (State)
1
Oyster Bay
1
Polar regions
1
Sagamore Hill National Historic Site (Oyster Bay, N.Y.)
1
San Joaquin Valley
1
Saturn (Planet)
1
Titan (Satellite)
1
Virginia
1
Wallops Island
1
Washington (D.C.)
1
West (U.S.)
1