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Kavir National Park, Iran
Kavir (Desert) National Park is a 400,000-hectare (1,000,000-acre) protected ecological zone in northern Iran. The park islocated 120 kilometers south of Tehran and 100 kilometers east of Qom, and it sits on the western end of one of Iran’s two…
Fires in Portugal
While Portugal faces its worst drought in 60 years, more than 3,000 firefighters struggle to contain almost 20 fires ravaging the countryside. Water shortages and temperatures higher than 100 degrees Fahrenheit (40 degrees Celsius) have hampered fire control efforts. As…
The Size of Dust and Smoke
The Size of Dust and HazeThe size of aerosol particles often reveals their source or type. Particles such as sea salt and desert dust tend to be larger than aerosols that come from burning—including forest fires and the burning of…
Cassini Significant Events — for 07/28/05 – 08/03/05
Cassini Significant Events — for 07/28/05 – 08/03/05 August 5, 2005 (Source: Cassini Project) The most recent spacecraft telemetry was acquired Wednesday, August 3, fromthe Madrid tracking stations. The Cassini spacecraft is in an excellentstate of health and is operating…
Aerosols Increase Clouds, Brighten Atlantic Skies
Climate-prediction scientists often talk about climate forcings—things that force the climate to change, usually by altering the amount of energy that enters and exits the Earth’s atmosphere. Most scientists consider aerosols the most challenging climate forcing to figure out because…
Hubble Spies a Zoo of Galaxies
Gazing deep into the universe, NASA’s Hubble Space Telescope has spied a menagerie of galaxies. Located within the same tiny region of space, these numerous galaxies display an assortment of unique characteristics. Some are big; some are small. A few…
Aerosol-Cloud Interactions
Of all the things that influence Earth’s climate, the tiny particles called aerosols may win scientists’ award for “least predictable.” Not only do aerosols scatter, absorb, and reflect energy that enters and exits Earth’s atmosphere, but they also tinker with…
Denali National Park
Featuring North America’s highest mountain, the 20,320-foot-tall Mt. McKinley, Denali National Park includes more than 6 million acres of diverse ecosystems, mountains and glaciers. Originally established as Mt. McKinley National Park February 26, 1917, the park was incorporated into the…
Grasberg Mine, Indonesia
Located in the Sudirman Mountains of the Irian Jaya province of Indonesia, the Grasberg complex is one of the largest gold and copper mining operations in the world.
Disappearing Lakes in Siberia
In the far North, short summers thaw only the top layer of the frozen ground. Beneath this shallow layer, the soil is permanently frozen—permafrost. The permafrost is like the cement bottom of a swimming pool. Water saturates the soil above…
Saharan Dust Cloud Sails Toward U.S.
A huge dust cloud blown westward from the Algerian desert wafted over the southeastern United States during the final week of July 2005. The cloud, about the width of the United States, was expected to produce dramatic sunsets and possibly…
Record Rainfall over Bombay
India’s financial capital, Mumbai (formerly Bombay), received a record-breaking 942 millimeters (37.1 inches) of rain in a twenty-four hour period on Tuesday, July 26, 2005. India’s previous all-time single-day record of 838 mm (33 inches) was set in 1912. The…
Cassini Significant Events — for 07/21/05 – 07/27/05
Cassini Significant Events — for 07/21/05 – 07/27/05 July 29, 2005 (Source: Cassini Project) The most recent spacecraft telemetry was acquired Wednesday, July 27, fromthe Goldstonetracking stations. The Cassini spacecraft is in an excellentstate of health and is operating normally.…
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