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Tree Canopy Height from 1650 to 1992
This series of maps shows how much the landscape of the eastern United States changed between 1650 and 1992. The maps depict canopy height, the height of the tallest continuous layer of vegetation.
Explorer 1 50th Anniversary
At 10:48 p.m. local time on January 31, 1958, the Explorer 1 satellite launched from Cape Canaveral, Florida, after launches scheduled the previous two days had been scrubbed due to high-altitude winds. A joint project between the U.S. Army and…
Ancient Forest to Modern City
To understand how local weather shifted when the towering forests of the eastern United States gave way to fields and cities, scientists must reconstruct the region’s historical landscapes.
Cassini Significant Events 01/23/08 – 01/29/08
Cassini Significant Events 01/23/08 – 01/29/08 February 1, 2008 (Source: Cassini Project) The most recent spacecraft telemetry was acquired on Monday, Jan. 28, from the Madrid tracking complex. The Cassini spacecraft is in an excellent state of health and all…
Low-Level Volcanic Activity Impacts Clouds
It is not difficult to imagine that a gigantic volcanic eruption spewing thick clouds of ash and gas high into the atmosphere would change the weather. But these satellite images show that a small, steady, simmering eruption also affects the…
A Momentous Anniversary and the Tradition Continues
Todd J. Barber, Cassini lead propulsion engineer As Cassini continues its intricate orbital ballet at Saturn, its home institution, the Jet Propulsion Laboratory in Pasadena, CA, is celebrating a momentous anniversary. As I write this, exactly 50 years ago today…
Heavy Snow in China
Though the days may be different, gathering with family and friends for major holidays is the same the world over. China’s biggest holiday, the Lunar New Year, prompts a mass migration (the largest on the planet, said BBC News) as…
Unusually Intense Rain Floods Southern Africa
Heavier-than-normal rainfall in January 2008 brought flooding to parts of southern Africa. The hardest hit areas included Zimbabwe, Zambia, Malawi, and Mozambique.
Port of Suez, Egypt
The Port of Suez is located in Egypt along the northern coastline of the Gulf of Suez. The port and city mark the southern terminus of the Suez Canal, which runs north-south through Egypt from the Mediterranean Sea to the…
Retreat of the Tasman Glacier
NIWA scientists stated that this glacier had retreated by 5 kilometers (about 3 miles) over the previous three decades. They also stated that New Zealand glaciers on the whole had lost 5.8 cubic kilometers (roughly 1.4 cubic miles) over the…
Ship Tracks off British Columbia
They may look like airplane contrails, but the streaky clouds shown in this photo-like image formed around the exhaust left in the wake of ships traveling along the northwest coast of North America.
Dust Storm off Western Sahara
Saharan dust hovered over the Atlantic for several days in mid-January 2008. This image shows two different areas of dust plume activity. Immediately off the coasts of Western Sahara and Mauritania, a series of tan dust plumes blow in predominantly…
NASA – Monster Storms Erupt on Jupiter
As the largest planet in our solar system, Jupiter likes to supersize its stormy weather. Two giant storms erupted from a jet stream blowing at 370 miles per hour on Jupiter in March, 2007. The storms exploded in size, growing…
Cassini Significant Events 01/16/08 – 01/22/08
Cassini Significant Events 01/16/08 – 01/22/08 January 25, 2008 (Source: Cassini Project) The most recent spacecraft telemetry was acquired on Tuesday, Jan. 22, from the Goldstone tracking complex. The Cassini spacecraft is in an excellent state of health and all…
Global Temperature Anomalies: 2007
Despite that a moderately strong La Niña event put a chill on the eastern Pacific Ocean, and the Sun was near a low in its 11-year cycle of variability, global average surface temperature in 2007 was still tied for the…
NASA – Giant Storm Eruption at Jupiter Unearths a Buried Past
Detailed analysis of two continent-sized storms that erupted in Jupiter’s atmosphere in March 2007 shows that Jupiter’s internal heat plays a significant role in generating atmospheric disturbances. › Full image and caption Scientists around the globe have observed an astonishing…
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