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The Amazon’s Seasonal Secret
Satellite data detect previously unknown seasonal cycles in the leaf area of the Amazon Rainforest. Increasing leaf area during the sunny dry season may actually trigger the seasonal rains.
Large Area of Antarctica Melted, Re-Froze in 2005
In May 2007, a team of researchers found evidence of warming and melting as much as 900 kilometers into Antarctica.
Titan’s Mysterious Radio Wave
Huygens scored a first in 2005 by measuring the electrical conductivity of Titan’s atmosphere. The results hint at a new way to investigate the subsurface layers of Titan and could provide insight into whether or not Titan has a subsurface…
Dissecting the Dirt on Titan
Planetary scientists are a step closer to understanding the composition of the dust in Titan’s atmosphere. A decade-long programme of laboratory studies, aiming to reproduce Titan’s unique dust, or ‘aerosol’ population in specially constructed reactors, has proved invaluable. Aerosols are…
Huygens’ Path to Titan
Scientists now know exactly how Huygens made its way to the surface of Titan. The reconstruction of the trajectory is particularly valuable for a correct interpretation of the observations from all six scientific investigations on board. It is the culmination…
Building Our New View of Titan
Today, two and a half years after the historic landing of ESA’s Huygens probe on Titan, a new set of results on Saturn’s largest moon is ready to be presented. Titan, as seen through the eyes of Huygens still holds…
Revealing Titan’s Rugged Surface
During its two and a half hour descent, the cameras on Huygens showed eager scientists on Earth spectacular regions of bright highlands with river drainages and canyons, bounded by dark plains on Titan. New information about the composition of the…
The Way the Wind Blows on Titan
A simulation of the winds encountered by Huygens has lead planetary scientists to believe that it’s entire atmosphere is circulating around on a conveyor belt. This huge system of moving gas transports warm air from the southern hemisphere to Titan’s…
Smoke Plume Over Eastern Canada
In late May, a massive smoke plume hundreds of kilometers across blew eastward over New Brunswick toward the Atlantic Ocean. By the time MODIS took this picture, the smoke appeared to have completely detached itself from the source, a large…
Concepcion Volcano, Nicaragua
Concepción Volcano is one of the tallest and most active of Nicaragua’s volcanoes. The 1,610-meter (5,280-foot), cone-shaped volcano is the northern half of dumbbell-shaped Isla de Ometepe. To the northwest of the crater, a very faint plume (probably steam) creeps…
Hubble Photographs Grand Design Spiral Galaxy M81
The sharpest image ever taken of the large “grand design” spiral galaxy M81 is being released today at the American Astronomical Society Meeting in Honolulu, Hawaii. This beautiful galaxy is tilted at an oblique angle on to our line of…
Monteregian Hills, Quebec, Canada
This astronaut photograph of the area to the east of Montreal, Canada, captures two striking patterns. The circular features are the central members of a group of unusual rock formations known as the Monteregian Hills: Mont St. Hilaire, Rougemont, and…
Valley Forge, Pennsylvania
No battles were fought here, but it was still one of the most important landmarks of the American Revolution.
Titan Flyby – May 28, 2007
Cassini’s science instruments studied Titan during the May 28, 2007, flyby.
Initiation of Rainy Season in Southern Amazon
Despite its name, much of the Amazon Rainforest is not actually rainy year round. Many areas experience a monsoon climate, with a season of heavy rains followed by a dry season that can last anywhere from one to seven months.…
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