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Increasing Tropical Rainfall
The planet’s wettest areas are getting a little wetter, according to NASA scientists who analyzed 25 years of ground- and space-based rainfall observations.
Cassini Significant Events 08/29/07 – 09/04/07
Cassini Significant Events 08/29/07 – 09/04/07 September 6, 2007 (Source: Cassini Project) The most recent spacecraft telemetry was acquired on Tuesday, Sept. 4, from the Goldstone tracking complex. The Cassini spacecraft is in an excellent state of health and all…
Hurricanes Henriette and Felix
Within less than three hours on September 3, 2007, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured images of two separate hurricanes near Central America: Henriette off Baja California, and Felix off the coast of Nicaragua. This…
Cassini Prepares to Fly By Walnut-shaped Moon
Cassini Prepares to Fly By Walnut-shaped Moon September 5, 2007 (Source: Jet Propulsion Laboratory) Images taken with Cassini’s ultraviolet imaging spectrograph shed some light on the dark side of Saturn’s moon Iapetus. Scientists are trying to figure out what painted…
Melting on the Greenland Ice Cap
Dangling below the Arctic Circle, the ice sheet on Greenland is a vestige of the last ice age. Other ice sheets at its latitude have long since dwindled away, but the Greenland Ice Sheet persists, preserved largely because of its…
Shiveluch Volcano, Russia’s Far East
Shiveluch is one of the biggest and most active of a line of volcanoes that follow the spine of the Kamchatka Peninsula in easternmost Russia. The volcanoes and peninsula are part of the tectonically active “Ring of Fire,” a zone…
Islands of the Four Mountains
Arcing southwestward from Alaska like the tail of a kite, the Aleutian Islands are a string of active and dormant volcanoes fed by magma created by the collision of the Pacific Plate with the North American Plate. In the northeast…
Approaching Iapetus’ Flyby
Todd J. Barber, Cassini lead propulsion engineer With Saturn unhurriedly climbing above the sun in the morning sky, that can only mean another solar conjunction period for Cassini has come and gone. It was a wonderful break before a truly…
Forest Fires in Algeria
Scores of forest fires were burning in northern Algeria in late August 2007. Although much of the country is occupied by the Sahara Desert, Mediterranean forests, woodlands, and chaparral occur on the Atlas Mountains that line the coast. The smoke…
Smoke Spreading from Greece to Africa
Besides laying waste to huge areas of forest, fires burning in Greece in August 2007 released pollutants that traveled across the Mediterranean Sea and into Africa.
Petermann Glacier, Greenland
On Greenland, tens of thousands of years of snowfall have settled and solidified into a massive sheet of ice. Each summer, snow retreats briefly at low elevations, and a narrow strip of rocky coastline emerges. While some seasonal thawing is…
Cassini Significant Events 08/22/07 – 08/28/07
Cassini Significant Events 08/22/07 – 08/28/07 August 30, 2007 (Source: Cassini Project) The most recent spacecraft telemetry was acquired on Tuesday, Aug. 28, from the Goldstone tracking complex. The Cassini spacecraft is in an excellent state of health and all…
Deadly Fires in Greece
Deadly wildfires in southern Greece wafted thick clouds of smoke over the Mediterranean Sea in late August 2007.
Rhea and Titan Flyby – Aug. 30 and 31, 2007
Cassini ends August with back-to-back fly-bys of Rhea and then Titan.
Northwest Passage Nearly Open
This image shows sea ice around the Northwest Passage as observed by the Advanced Microwave Scanning Radiometer for EOS (AMSR-E) aboard NASA’s Aqua satellite on August 22, 2007. McClure Strait, Parry Channel, Victoria Strait, and McClintock Channel (north of Victoria…
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Descobertas, missões espaciais, pesquisas e avanços tecnológicos da agência espacial americana.