Region
United States
18
Earth (Planet)
12
Outer space
12
Solar system
12
Sun
9
États-Unis
6
Système solaire
5
Espace extra-atmosphérique
3
North America
3
Earth
2
Moon
2
Terre
2
USA
2
Universe
2
Africa
1
Afrique
1
British Columbia
1
California
1
Californie
1
Canada
1
Cape May
1
Deep space
1
England
1
Estados Unidos
1
Etats-Unis
1
France
1
Jupiter (Planet)
1
Lune
1
New Jersey
1
New Titles: September 2015: Physics & Astronomy
1
Saturn (Planet)
1
Sonnensystem
1
UNITED STATES
1
Venus (Planet)
1
West (U.S.)
1