a
Utah’s Green River, January 22, 2014.Photos: NASA

b
Arkansas River and the Holla Bend Wildlife Refuge, August 4, 2014 
 
 

C
An artificial island at the southern end of Bahrain Island, January 23, 2011

D
Akimiski Island in James Bay, August 9, 2000 
 

e
A phytoplankton bloom off the coast of New Zealand, October 25, 2009

F
Valleys and snow-covered mountain ranges in southeastern Tibet, August 4, 2014 
 

G
Pinaki Island, April 2001 
 

H
Southwestern Kyrgyzstan, August 30, 2014

i
Andaman Islands, February 10, 2007 
 

J
Trunk Reef near Townsville, Australia, July 17, 2015

K
Sirmilik National Park Pond Inlet in Mittimatalik, Canada, August 3, 2015 
 

L
Snow across the northeastern United States, October 30, 2008 
 

M
Tian Shan mountains in northeastern Kyrgyzstan, August 14, 2015 
 

N
Ship tracks over the Pacific, March 4, 2009 
 

O
Tenoumer meteorite crater in Mauritania, January 24, 2008 
 

p
Mackenzie River Delta in Canada, August 4, 2005 
 

Q
Lonar Crater in India, November 29, 2004 
 

r
Lago Menendez in Argentina, January 20, 2015 
 

S
Clouds swirling over the Atlantic Ocean, April 29, 2009 
 

T
United Arab Emirates, March 9, 2015 
 

U
Gooseneck State Park in Utah, May 9, 2004 
 

V
Ash on the snow around Shiveluch, March 23, 2015 
 

W
Dust blowing over the Red Sea, January 13, 2009 
 

X
Northwest corner of Leidy Glacier in Greenland, August 7, 2012 
 

Y
Ugab River in Namibia, December 25, 2000

Z
Wildfire smoke over Canada, July 11, 2012