Minuteman Missile Silo #1
Jim West
Minuteman Missile In Silo
Jim West
Supercell Thunderstorm Over Fields #2
Roger Hill/science Photo Library
Tornado #1
Reed Timmer & Jim Bishop/science Photo Library
Farming In South Dakota
Jim West
Farming In South Dakota #1
Jim West
Farming In South Dakota #2
Jim West
Ammonite Fossil
Science Stock Photography/science Photo Library
Buffalo Gap National Grassland
Peter Falkner/science Photo Library
Sunflower Field
Jim West/science Photo Library
Supercell Thunderstorm And Lightning #1
Roger Hill/science Photo Library
Pair Of Pachycephalosaurus Dinosaurs
James Kuether/science Photo Library
Two Tornadoes
Jim Reed/science Photo Library
Twin Tornados #2
Roger Hill
Supercell Thunderstorm #2
Roger Hill
Fossil Mammoth Skull #1
Peter Menzel/science Photo Library
Nose-mounted Aeroplane Guns
Jim West
Explorer II High-altitude Balloon
Us National Archives
Supercell Thunderstorm
Roger Hill
Working On Mount Rushmore
American Philosophical Society
Minuteman Missile Control Room #2
Jim West
Mammoth Fossil #1
Jim West
Palaeontology Dig
Jim West
Explorer II High-altitude Balloon #1
Us National Archives
Minuteman Missile Control Room #5
Jim West
Human And T. Rex Skeletons
Jim West
Minuteman Missile Control Room #6
Jim West
Man And T. Rex Skeletons
Jim West
Minuteman Missile Control Room #7
Jim West
Badlands National Park #1
Jim West
Palaeontology Dig #1
Jim West
Mammoth Fossil #2
Jim West
Minuteman Missile Control Room #9
Jim West
Mammoth Skeleton
Jim West
Mammoth Fossil #3
Jim West
Badlands National Park #3
Jim West
Captain Albert Stevens
American Philosophical Society
Minuteman Missile Launch Site
Jim West
Minuteman Missile Silo #2
Jim West
Tornado
Reed Timmer & Jim Bishop/science Photo Library
Lightning #1
Jim Reed/science Photo Library
Gravity Wave Clouds
Jim Reed/science Photo Library
Potato Leafhopper
Dennis Kunkel Microscopy/science Photo Library
Scaphites Ammonite Fossil
Natural History Museum, London/science Photo Library
Tornado
Reed Timmer/science Photo Library
Enclosed Prairie Farmland
Peter Falkner/science Photo Library
Potato Leafhopper #1
Dennis Kunkel Microscopy/science Photo Library
Road Construction
Library Of Congress/science Photo Library
Tornadic Thunderstorm
Roger Hill/science Photo Library
Ef4 Tornado
Roger Hill/science Photo Library
Supercell Thunderstorm #3
Jim Reed Photography/science Photo Library
Tornado #2
Roger Hill/science Photo Library
Tornadic Supercell Thunderstorm #2
Roger Hill/science Photo Library
Tornado Research
Jim Reed Photography/science Photo Library
Supercell Thunderstorm #3
Roger Hill/science Photo Library
Supercell Thunderstorm #4
Jim Reed Photography/science Photo Library
Mesocyclone Thunderstorm #2
Jim Reed/science Photo Library
Supercell Thunderstorm Over Fields #3
Roger Hill/science Photo Library
Supercell Thunderstorm Over Fields #4
Roger Hill/science Photo Library
Sunflower Field #1
Jim West/science Photo Library
Ammonite Fossil #1
Science Stock Photography/science Photo Library
Potato Leafhopper #2
Dennis Kunkel Microscopy/science Photo Library
Tornado #4
Jim Reed/science Photo Library
Tornado Over Fields #1
Jim Reed Photography/science Photo Library
Soil Drifting Over Us Farm Building
Library Of Congress/science Photo Library
Supercell Thunderstorm #4
Roger Hill/science Photo Library
Mammatus Clouds Over Fields
Roger Hill/science Photo Library
Haakon County
Jim West/science Photo Library