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  • USA_SCI_BIOSPH_76_xs <br />
Biosphere 2 Project undertaken by Space Biosphere Ventures, a private ecological research firm funded by Edward P. Bass of Texas.  Tony Burgess, a biologist and consultant to the project, in the Arizona desert with saguaro cacti.  Biosphere 2 was a privately funded experiment, designed to investigate the way in which humans interact with a small self-sufficient ecological environment, and to look at possibilities for future planetary colonization. The $30 million Biosphere covers 2.5 acres near Tucson, Arizona, and was entirely self- contained. The eight ‘Biospherian’s’ shared their air- and water-tight world with 3,800 species of plant and animal life. The project had problems with oxygen levels and food supply, and has been criticized over its scientific validity.1990
    USA_SCI_BIOSPH_76_xs.jpg
  • Sunset sky at the Saguaro National Monument, Arizona desert with large green saguaro cactus (Carnegiea gigantea) near Tucson, Arizona, USA.
    USA_AZ_03_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds. This photo was made with a five-minute time exposure. Tucson, Arizona, USA. 1992..
    USA_SCI_WX_23_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds. Tucson, Arizona, USA. 1992..
    USA_SCI_WX_21_xs.jpg
  • Ocotillo cactus near Gates Pass, Tucson, Arizona desert at sunset. Saguaro cactus is at right.
    USA_AZ_07_xs.jpg
  • Saguaro (tall) and ocotillo (spindly) cacti outside Tucson, Arizona, USA.
    USA_AZ_01_xs.jpg
  • Weather: A Saguaro Cactus and an afternoon summer lightning storm in the Tucson, Arizona desert. (1993)
    USA_SCI_WX_13_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds. This photo was made with a five-minute time exposure. Tucson, Arizona, USA. 1992..
    USA_SCI_WX_22_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds.
    USA_SCI_LIG_34_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds.
    USA_SCI_LIG_33_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds. ..Lightning occurs when a large electrical charge builds up in a cloud, probably due to the friction of water and ice particles. The charge induces an opposite charge on the ground, and a few leader electrons travel to the ground. When one makes contact, there is a huge backflow of energy up the path of the electron. This produces a bright flash of light, and temperatures of up to 30,000 degrees Celsius. Tucson, Arizona, USA. (1992)
    USA_SCI_LIG_02_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds. ..Lightning occurs when a large electrical charge builds up in a cloud, probably due to the friction of water and ice particles. The charge induces an opposite charge on the ground, and a few leader electrons travel to the ground. When one makes contact, there is a huge backflow of energy up the path of the electron. This produces a bright flash of light, and temperatures of up to 30,000 degrees Celsius. Tucson, Arizona, USA. (1992)
    USA_SCI_LIG_01_xs.jpg
  • Arizona. Lightning. Time exposure image of lightning strikes over Tucson, Arizona, USA..The silhouette of a giant saguaro cactus (Carnegiea gigantea) is in the foreground at right and left. Car tail light trails are also seen in the foreground. Lightning occurs when a large electrical charge builds up in a cloud, probably due to the friction of water and ice particles. The charge induces an opposite charge on the ground, and a few leader electrons travel to the ground. When one makes contact, there is a huge backflow of energy up the path of the electron. This produces a bright flash of light, and temperatures of up to 30,000 degrees Celsius. Photographed in Tucson, Arizona, USA. .
    USA_AZ_06_xs.jpg
  • Arizona sunrise with saguaro cacti (Carnegiea gigantea) near Tucson, Arizona, USA.
    USA_AZ_05_xs.jpg
  • Saguaro cactus in the Arizona desert (Carnegiea gigantea) near Tucson, Arizona, USA.
    USA_AZ_02_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds. ..Lightning occurs when a large electrical charge builds up in a cloud, probably due to the friction of water and ice particles. The charge induces an opposite charge on the ground, and a few leader electrons travel to the ground. When one makes contact, there is a huge backflow of energy up the path of the electron. This produces a bright flash of light, and temperatures of up to 30,000 degrees Celsius. Tucson, Arizona, USA. (1992)
    USA_SCI_LIG_36_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds. Tucson, Arizona, USA. (1992)
    USA_SCI_LIG_35_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds.
    USA_SCI_LIG_31_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds. ..Lightning occurs when a large electrical charge builds up in a cloud, probably due to the friction of water and ice particles. The charge induces an opposite charge on the ground, and a few leader electrons travel to the ground. When one makes contact, there is a huge backflow of energy up the path of the electron. This produces a bright flash of light, and temperatures of up to 30,000 degrees Celsius. Tucson, Arizona, USA. (1992)
    USA_SCI_LIG_001_nxs.jpg
  • Time exposure image of Tucson, Arizona with a giant saguaro cactus (Carnegiea gigantea) in the foreground.
    USA_AZ_04_xs.jpg
  • Tucson, Arizona. Saguaro Cacti and star trails near Gates Pass.
    USA_DSRT_14_xs.jpg
  • Summer lightning storm over Tucson, Arizona from Tumamoc Hill with Saguaro cactus. Storms erupt regularly during Arizona summers due to the moist air that flows in from the Gulf of California then collides with nearby mountains and is forced upward, where it condenses into thunderclouds. ..Lightning occurs when a large electrical charge builds up in a cloud, probably due to the friction of water and ice particles. The charge induces an opposite charge on the ground, and a few leader electrons travel to the ground. When one makes contact, there is a huge backflow of energy up the path of the electron. This produces a bright flash of light, and temperatures of up to 30,000 degrees Celsius. Tucson, Arizona, USA. (1992)
    USA_SCI_LIG_32_xs.jpg

Peter Menzel Photography

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