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Ayles Ice Shelf, Ellesmere Island
On August 13, 2005, the remote Ayles Ice Shelf on Ellesmere Island in northern Canada broke free and began drifting out to sea. The ice shelf was roughly 66 square kilometers (25 square miles), slightly larger than Manhattan, New York,…
Bodele Depression Dust Feeds Amazon
Though wind-scoured and virtually barren, the southern Sahara Desert turns out to be a surprising sustainer of life an ocean away—in South America’s Amazon Rainforest. By studying NASA satellite data of the spread of dust across the globe, scientists discovered…
Cassini Significant Events 12/21/06 – 01/03/07
Cassini Significant Events 12/21/06 – 01/03/07 January 5, 2007 (Source: Cassini Project) The most recent spacecraft telemetry was acquired on Wednesday, Jan. 3, from the Goldstone tracking complex. The Cassini spacecraft is in an excellent state of health and all…
Vegetation and Rainfall in the Sahel
Between the vast sands of the Sahara Desert and the dense foliage of the Congo Rainforest stretches a band of semi-arid grassland. Known as the Sahel, this hardy landscape is one of Africa’s most productive crop regions. Despite its productivity,…
STEREO’s First View of the Sun
Loops of highly charged particles burst from an active region on the Sun’s surface in this image, taken on December 4, 2006. Among the first images taken by STEREO’s SECCHI/Extreme Ultraviolet Imaging Telescope, the image shows the Sun’s roiling surface…
Defining Desertification
A string of dry years shriveled vegetation in Africa’s Sahel, causing some to fear that the Sahara Desert was shifting south. Satellite data spanning more than twenty years now shows that the Sahel is holding its own against the Sahara…
Extratropical Cyclones near Iceland
A cyclone is a low-pressure area of winds that spiral inwards. Although tropical storms most often come to mind, these spiraling storms can also form at mid- and high latitudes. Two such cyclones formed in tandem in November 2006 near…
Dyess Air Force Base: Abilene, Texas
Dyess Air Force Base, located near the central Texas city of Abilene, is the home of the 7 th Bomb Wing and 317 th Airlift Groups of the United States Air Force. The main runway is approximately 5 kilometers long,…
Coral Reefs of Southwest Madagascar
Rising ocean temperatures are having a significant negative impact on coral reefs in many parts of the world. When temperatures rise too much, the coral expel the colorful algae that grow symbiotically with them. Without the algae, the coral turn…
Fires in Victoria, Australia
Following an unusually warm and dry November 2006, Australia suffered from an unsurprising spate of fires the following month. On December 29, 2006, the Moderate Resolution Imaging Spectroradiometer (MODIS) flying onboard NASA’s Aqua satellite captured this image of fires burning…
Cassini Top 10 Science Highlights – 2006
Each year the Cassini Science Team chooses the best science stories of the year. These are their picks for 2006.
Vegetation Struggles in Southeastern Australia
Rainfall in southeastern Australia in 2006 was well below average, and average temperatures for the continent in November 2006 hit a record high. The climate punished vegetation across the region. In November 2006, observations of vegetation conditions captured by the…
Australia Unusually Warm in November 2006
Deep red paints the coastal mountains of southeastern Australia, hangs over the continent’s arid interior, and dots much of the rest of the land in this image, indicating that unusually high temperatures reigned in November 2006.
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