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Mangrove Forests in Culladore, India
The Indian Ocean tsunami of December 26, 2004, served as a reminder that nature can be profoundly destructive. Researchers who looked more closely at the tsunami’s aftermath, however, learned something else: While destructive, nature is not uniformly so. In the…
Oil Spill near Guimaras Island
Strong winds and high waves capsized a tanker off Guimaras Island in the Philippines on August 11, 2006, spilling more than 200,000 liters of bunker oil into the Panay Gulf, said the Philippines National Disaster Coordinating Council. Long strings and…
Pacific Cooler Than Normal in Oregon Dead Zone
Off the coast of Oregon, a large dead zone—an area of water where the oxygen concentration is so low that little to no marine life can survive—has been appearing each summer since 2002. The dead zones appear to be linked…
Cassini Significant Events 08/24/06 – 08/30/06
Cassini Significant Events 08/24/06 – 08/30/06 September 1, 2006 (Source: Cassini Project) The most recent spacecraft telemetry was acquired Wednesday, August 30, fromthe Goldstone tracking stations. The Cassini spacecraft is in an excellentstate of health and is operating normally. Information…
Hubble Captures a Rare Eclipse on Uranus
This image is a never-before-seen astronomical alignment of a moon traversing the face of Uranus, and its accompanying shadow. The white dot near the center of Uranus’ blue-green disk is the icy moon Ariel. The 700-mile-diameter satellite is casting a…
Mississippi Meanders
As it winds from Minnesota to the Gulf of Mexico, the Mississippi River is in constant flux. Fast water carries sediment while slow water deposits it. Soft riverbanks are continuously eroded. Floods occasionally spread across the wide, shallow valley that…
Tropical Storm Ernesto
On Sunday August 27, 2006, Ernesto became the first storm of the Atlantic season to reach hurricane intensity. Ernesto did not maintain hurricane intensity for long, however, and was soon downgraded back to a tropical storm after grazing the southwestern…
Winds of Hurricane Katrina
When Hurricane Katrina moved over the Gulf Coast of the United States on August 29, 2005, its effects were felt far from the reach of its powerful winds, drenching rains, and surging surf. The storm’s impact reverberated across the United…
Cassiopeia A – The Colorful Aftermath of a Violent Stellar Death
A new image taken with NASA’s Hubble Space Telescope provides a detailed look at the tattered remains of a supernova explosion known as Cassiopeia A (Cas A). It is the youngest known remnant from a supernova explosion in the Milky…
250,000 Earth Photographs from the International Space Station
The crew of Expedition 13 recently passed a major milestone: as of late August 2006, more than one quarter of a million images of Earth had been taken from the International Space Station. The 250,000 th image is an oblique…
Salt Domes on Melville Island
They may look like meteor craters, but the circular features in the surface of northern Canada’s Melville Island actually formed from geologic processes deep underground. These features on the island’s Sabine Peninsula are salt domes, or diapirs. When ancient seas…
Hurricane Ileana
Hurricane Ileana started as all tropical cyclones do, as a depression—an area of low atmospheric pressure. After forming August 21, 2006, the depression quickly developed into a tropical storm, the threshold for earning a name. As happens with some tropical…
Rock Glacier on Mount Sopris
Not all glaciers are made of ice. Some glaciers are made of rock. More accurately, they are composed of a combination of ice and rock. Opinions vary on how rock glaciers form, but geologists generally agree that one condition necessary…
Cassini Significant Events 08/17/06 – 08/23/06
Cassini Significant Events 08/17/06 – 08/23/06 August 25, 2006 (Source: Cassini Project) The most recent spacecraft telemetry was acquired Wednesday, August 23, fromthe Goldstone tracking stations. The Cassini spacecraft is in an excellentstate of health and is operating normally. Information…
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