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Chilean Volcanoes
On the border between Chile and the Catamarca province of Argentina lies a vast fieldof currently dormant volcanoes. Over time, these volcanoes have laid down a crust ofmagma roughly 2 miles (3.5 km) thick. It is tinged with a patina…
Asian Dust Reaches Alaska
This SeaWiFS view of Alaska (upper right) and the Bering Sea (center), collected on April 13, 2002, reveals an unmistakable wave of dust (brownish pixels) traveling southward along Alaska’s western coastline and over the Aleutian Island chain. The dust, probably…
Dust Cloud over Sea of Japan
Large plumes of dust continued to blow from East Asia across the Sea of Japan and out toward the open Pacific Ocean on April 14, 2002. This true-color scene was acquired by the Sea-viewing Wide Field-of-view Sensor (SeaWiFS). References &…
Coastal Fog, South Peruvian Coast at Pisco
Coastal fog commonly drapes the Peruvian coast. This image captures complex interactions between land, sea, and atmosphere along the southern Peruvian coast. When Shuttle astronauts took the image in March 2002, the layers of coastal fog and stratus were being…
Long Dormant Volcano Shows Signs of Life
The Chiliques volcano, which sits in northern Chile and hasn’t erupted in at least 10,000 years, is now showing signs of life.This pair of images from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER)shows the volcano in visible and…
Vapor Trails over Canada
One little victory in the life of a cloud—conditions were good for contrail formation over eastern Canada on April 12, 2002. This true-color Sea-viewing Wide Field-of-View Sensor (SeaWiFS) image reveals dozens of long, linear clouds around Nova Scotia that were…
The Ozone We Breathe
Ozone in the lower atmosphere (troposphere) is toxic to human beings and many species of plants, causing harm without visible symptoms.
Smoke and Sediments in Sicily
The waters along the shoreline of Sicily appear bright aquamarine in this imagefrom April 7, 2002. Although other satellite images occasionally show lighteningalong the coast of Sicily and southern Italy, the water is unusually bright inthis image. The bright water…
Significant Event Report for Week Ending 4/19/2002
Cassini Significant Event Report For Week Ending 04/19/02 The most recent spacecraft telemetry was acquired from the Goldstone tracking station on Wednesday, April 17. The Cassini spacecraft is in an excellent state of health and is operating normally. Information on…
Southern Florida’s River of Grass
Florida’s Everglades is a region of broad, slow-moving sheets of water flowingsouthward over low-lying areas from Lake Okeechobee to the Gulf of Mexico. Inplaces this remarkable ‘river of grass’ is 80 kilometers wide. These images fromthe Multi-angle Imaging SpectroRadiometer show…
Hubble Hunts Down Binary Objects at the Fringe of Our Solar System
NASA’s Hubble Space Telescope is hot on the trail of an intriguing new class of solar system object that might be called a Pluto “mini-me” – dim and fleeting objects that travel in pairs in the frigid, mysterious outer realm…
Fires Throughout Thailand, Myanmar, and Laos
For the past two months, wildfires and agricultural fires have littered theIndochina landscape, periodically filling the skies with a thick, grayish layerof smoke. This image was acquired on April 5, 2002, by theModerate-resolution Imaging Spectroradiomter (MODIS), flying aboard NASA’s Terrasatellite.…
Domes of Destruction
Imagery from the ASTER satellite instrument helps scientists monitor volcanic domes.
Phytoplankton off the West Coast of Africa
Just off the coast of West Africa, persistent northeasterly trade winds often churn up deep ocean water. When the nutrients in these deep waters reach the ocean’s surface, they often give rise to large blooms of phytoplankton. This image of…
Parana River Delta in Argentina
The Parana River delta is a huge forested marshland about 20 miles northeast of Buenos Aires,Argentina. The area is a very popular tour destination. Guided boat tours can be taken intothis vast labyrinth of marsh and trees. The Parana River…
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