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Dust in the Mediterranean
On July 24, the Sea-viewing Wide Field-of-view Sensor (SeaWiFS), acquired this true-color image of a large cloud of dust blowing from northern Africa across the Mediterranean Sea. The dust storm has persisted in the region for at least a week.…
Stars, Clouds, Crops
Stars’ brightness influences planting practices in the Andes.
Volcano Erupts in Chile
Lascar volcano, in northern Chile, erupted on July 20, 2000, sending ash40,000 feet into the air. These images from the NOAA GeostationaryOperational Environmental Satellite (GOES) show the ash cloud as it bleweast.The top images use the GOES visible light band.…
Thinning Greenland Icecap
Scientists who want to monitor the state of our global climate may haveto look no farther than the coastal ice that surrounds the Earth’slargest island.A NASA study of Greenland’s ice sheet reveals that it is rapidlythinning. In an article published…
Significant Event Report for Week Ending 7/21/2000
Cassini Significant Event Report For Week Ending 07/21/00 The most recent spacecraft telemetry was acquired from the Goldstone tracking station on Wednesday, 07/19. The Cassini spacecraft is in an excellent state of health and is operating normally. The speed of…
MISR views of Australia
MISR images of tropical northern Australia acquired on June 1, 2000(Terra orbit 2413) during the long dry season. Left: color composite ofvertical (nadir) camera blue, green, and red band data. Right:multi-angle composite of red band data only from the cameras…
France
Every July, the world’s best cyclists racemore than 3500 km around France, and sometimes thesurrounding countries, in the Tour de France. Thisimage from the Moderate resolution ImagingSpectroradiometer (MODIS) shows the varied terrainwhich challenges the riders. The race started in western…
Tracking Eddies that Feed the Sea
Scientists are using sea surface height data collected by satellites to monitor eddies (vortices of water) in the Gulf of Alaska. These eddies are important because they carry nutrients from coastal waters into the open ocean, thereby nourishing the phytoplankton…
Ancient Troy
Ancient Troy was once a mythical city, known only throughthe text of Homer’s Iliad. In 1870, however,the German archeologist Heinrich Schlieman discovered theruins of Troy (and several cities above and beneath it) innorthwest Turkey. He located the city by scrutinizing…
Eddies in the Gulf of Alaska
This image shows eddies in the Gulf of Alaska as measured by the TOPEX/Poseidon and ERS-2 satellites. Each eddy is indicated by the yearand location where it formed.Eddies are roatating masses of water in the ocean that typically form along…
Greek Wildfires
Hot, dry weather has contributed to a string of firesthat burned in Greece during the first two weeks of July 2000.Smoke from one of these fires is streaming across Greece andout into the Aegean Sea in this image taken July…
Significant Event Report for Week Ending 7/14/2000
Cassini Significant Event Report For Week Ending 07/14/00 The most recent spacecraft telemetry was acquired from the Goldstone tracking station on Wednesday, 07/12. The Cassini spacecraft is in an excellent state of health and is operating normally. The speed of…
Basalt Cliffs, Patagonia, Argentina
Basalt cliffs along the northwest edge of the Meseta de Somuncuraplateau near Sierra Colorada, Argentina show an unusual and strikingpattern of erosion. Stereoscopic observation helps to clarify thelandform changing processes active here. Many of the cliffs appear to berock staircases…
Hubble Watches Star Tear Apart its Neighborhood
The Hubble telescope has snapped a view of a stellar demolition zone in our Milky Way Galaxy: a massive star, nearing the end of its life, tearing apart the shell of surrounding material it blew off 250,000 years ago with…
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