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Large Sunspot Aimed at Earth
At 20 times the size of Earth, the largest sunspot observed since the November 2003 series of solar storms is now pointed directly at Earth.
Crown Fire, California
Several fast-moving wildfires have been nipping at the margins of Los Angeles in the third week of July 2004. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this image of the Crown Fire on July 21, 2004.…
Significant Event Report for Week Ending 7/23/2004
Cassini Significant Event Report For Week Ending 07/23/04 The most recent spacecraft telemetry was acquired from the Goldstone tracking station on Wednesday, July 21. The Cassini spacecraft is in an excellent state of health and is operating normally. Information on…
Smoke Signals from the Alaska and Yukon Fires
Large, lightning-induced fires were active in Alaska and the Yukon Territory from mid-June to mid-July 2004. Thick smoke particles filled the air during these fires, prompting Alaskan officials to issue air quality warnings. Some of the smoke from these fires…
A Day in the Lives of Galaxies
Like a photographer clicking random snapshots of a crowd of people, NASA’s Hubble Space Telescope has taken a view of an eclectic mix of galaxies. In taking this picture, Hubble’s Advanced Camera for Surveys was not looking at any particular…
Monsoon Rains Flood East Asia
The summer rainy season brought on by the summer monsoon has arrived over eastern Asia bringing with it seasonal flooding and torrential rains. Over the past few weeks, parts of Nepal, India and Bangladesh have been devastated by floods, but…
Saturn’s Rings Offer a Fresco of Color
Saturn’s Rings Offer a Fresco of Color
The Last 300 Feet to the Moon
After making the 240,000-mile journey to the moon cruising through open space, the last 300 feet down to landing represented the most difficult and dangerous part of the Apollo missions. The Apollo astronauts needed a way to practice that final…
Nicolaus Steno (1638-1686)
Although he lived at a time when people believed in witches and unicorns, Nicolaus Steno established some of the most important principles of modern geology.
Plateau de Beille, Pyrenees
The annual Tour de France (bicycle race) is well known for its grueling mountain climbs. Stage 13 of this year’s race provided an example of how difficult the terrain can be. On Saturday, July 17, the riders of the Tour…
Tucson, Arizona
Tucson lies between the forested Catalina Mountains and the Tucson Mountains (dark reddish brown at the left image margin).The typical western North American cityscape is a pattern of regular north-south aligned rectangles outlined by major streets set one mile apart.
The Syrian Desert
Between the fertile Euphrates River valley and the cultivated lands of the easternMediterranean coast, the Syrian Desert covers parts of modern Syria, Jordan, SaudiArabia, and Iraq.This image was acquired by Landsat 7’sEnhanced Thematic Mapper plus (ETM+) sensor.References & Resources Image…
Cape Town, South Africa
Cape Town and the Cape of Good Hope, South Africa, appear in the foreground of this perspective view generated from a Landsat satellite image and elevation data from the Shuttle Radar Topography Mission (SRTM). The city center is located at…
NASA Launches Aura Satellite
NASA launched its Aura satellite from Vandenberg Air Force Base, California, at 3:01 a.m. PDT on July 15, 2004. At 4:06 a.m. PDT, Aura was safely deployed into orbit 705 kilometers (438 miles) above Earth. The purpose of the mission…
Tropical Depression Blas
The SeaWiFS instrument onboard the OrbView-2 satellite captured this true-color image of Tropical Depression Blas churning in the Pacific waters off Baja, Mexico. At the time this image was taken Blas had a minumum central pressure of 1005 mb with…
Significant Event Report for Week Ending 7/16/2004
Cassini Significant Event Report For Week Ending 07/16/04 The most recent spacecraft telemetry was acquired from the Goldstone tracking station on Wednesday, July 14. The Cassini spacecraft is in an excellent state of health and is operating normally. Information on…
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