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Abstract Art or Arbiters of Energy?
More than just the idle stuff of daydreams, clouds help control the flow of radiant energy around our world. Clouds are plentiful and widespread throughout Earth’s atmosphere—covering up to 75 percent of our planet at any given time—so they play…
Observations Reveal Curiosities on the Surface of Asteroid Ceres
An international team led by scientists at the Southwest Research Institute (SwRI) has discovered some curious properties of the largest asteroid, Ceres
Significant Event Report for Week Ending 10/19/2001
Cassini Significant Event Report For Week Ending 10/19/01 The most recent spacecraft telemetry was acquired from the Goldstone tracking station on Sunday, October 14. The Cassini spacecraft is in an excellent state of health and is operating normally. Information on…
Deforestation near Rio Branco, Brazil
Settlement and deforestation surrounding the Brazilian town of Rio Branco are seen here in the striking “herringbone” deforestation patterns that cut through the rainforest. Rio Branco is the capital of the Brazilian state of Acre and is situated near the…
Antarctic Ozone Hole on September 17, 2001
Satellite data show the area of this year’s Antarctic ozone hole peaked at about 26 million square kilometers—roughly the size of North America—making the hole similar in size to those of the past three years, according to scientists from NASA…
Aerosols over Eastern Asia
This Sea-viewing Wide Field-of-view Sensor (SeaWiFS) image of eastern Asia from October 14, 2001, shows large amounts of aerosol in the air. A few possible point sources of smoke, probably fires, are visible north of the Amur River at the…
4th Anniversary Celebration for Huygens Team
On 15 October 1997, the skies over Cape Canaveral were illuminated by the fiery exhaust from a mighty Titan IVB/Centaur rocket.
New Tools to Explore Troy
During the Golden Age of Greece the poet Homer wrote of the epic battles between Agamemnon and Priam—the fabled Trojan War. Although the city of Troy was a tourist attraction in Greek and Roman times, by the 1800s its location…
Space Station view of the Pyramids at Giza
This image represents, for its time, the greatest detail of the Giza plateau captured from a human-occupied spacecraft.
Dust Streams from Tunisia
On October 6, 2001, the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) captured this true-color image of a large dust storm blowing northeastward across the Mediterranean Sea from Tunisia. According to Joseph Prospero, professor of atmospheric science at the University of Miami,…
NASA Radar Gives Fresh Look at Alaska’s Unique Terrain
A NASA mission to study Alaska’s unique terrain is providing scientists with their first detailed look at the changing topography of one of Earth’s most active volcanic regions. Researchers at the Alaska Synthetic Aperture Radar (SAR) Facility, Fairbanks, have created…
Significant Event Report for Week Ending 10/12/2001
Cassini Significant Event Report For Week Ending 10/12/01 The most recent spacecraft telemetry was acquired from the Goldstone tracking station on Sunday, October 7. The Cassini spacecraft is in an excellent state of health and is operating normally. Information on…
Clouds in the Balance
In 1998, atmospheric scientists discovered a significant change in cloud vertical structure triggered by the strongest El Niño on record.
Scientists Track “Perfect Storm” on Mars
A pair of eagle-eyed NASA spacecraft – the Mars Global Surveyor (MGS) and Hubble Space Telescope – are giving amazed astronomers scientists a ringside seat to the biggest global dust storm seen on Mars in several decades. The Martian dust…
The Land of Ice and Fire
Due to an unusual combination of tectonic settings, many icecaps and glaciers of Iceland rest above active volcanoes. This island nation is located on the northern edge of the Mid-Atlantic ridge, at the intersection of the North American and Eurasian…
Ulysses Reaches the Sun’s North Pole
For the second time in its 11-year lifetime, ESA’s Ulysses spacecraft is about to fly over the Sun’s north pole.
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