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Cassini Significant Events 03/21/07 – 03/27/07
Cassini Significant Events 03/21/07 – 03/27/07 March 29, 2007 (Source: Cassini Project) The most recent spacecraft telemetry was acquired on Tuesday, March 27, from the Goldstone tracking complex. The Cassini spacecraft is in an excellent state of health and all…
Lahar on Mount Ruapehu, New Zealand
Lahars present an ongoing threat to those living around New Zealand’s Mount Ruapehu. On March 18, 2007, one such slurry burst out of Mount Ruapehu’s caldera and flowed down the side of the volcano.
Aerosol Blanket Likely Thinned During 1990s
Each day, a blanket of tiny particles drifting through the Earth’s atmosphere filters out some of the sunlight headed for the planet’s surface. These aerosols, including dust, smoke, and human-produced pollution, can reflect incoming light or absorb it, directly affecting…
Cassini Images Bizarre Hexagon on Saturn
Cassini Images Bizarre Hexagon on Saturn March 27, 2007 (Source: Jet Propulsion Laboratory) Saturn’s Active North Pole + View Related Movie Pasadena, Calif. — An odd, six-sided, honeycomb-shaped feature circling the entire north pole of Saturn has captured the interest…
Guanaja Island, Honduras
Guanaja Island is located in the western Caribbean, approximately 60 kilometers (about 37 miles) north of mainland Honduras. The island is near the western edge of the Cayman Ridge, a topographic feature made of rock types that indicate ancient volcanic…
Lava Flows in the Grand Canyon
Over vast expanses of time, natural processes like floods and volcanoes deposit layers of rock on the Earth’s surface. To delve down through layers of rock is to explore our planet’s history. Sometimes rock layers are exposed through human activity,…
Titan Flyby – Mar. 26, 2007
Cassini completed a successful flyby of Titan on Mon., March 26.
The Sun’s Magnetic Field
Vivid orange streamers of super-hot, electrically charged gas (plasma) arc from the surface of the Sun, revealing the structure of the solar magnetic field rising vertically from a sunspot. The thin outer surface of the Sun, the corona, is shaped…
Haze over Beijing
Thick haze collected over the Beijing region in late March 2007. Earlier that month, the BBC News reported that an international team of scientists had documented how increasing pollution in China led to decreasing rainfall over the region.
Cuzco, Peru
In the Andes Mountains of southern Peru, the Inca civilization flourished for several centuries until it was conquered by the Spanish in the 16th century. Many Inca ruins, including ceremonial pyramids and fortresses, remain in the region, providing glimpses into…
Enceladus Geysers Mask the Length of Saturn’s Day
In a David and Goliath story of Saturnian proportions, the little moon Enceladus is weighing down giant Saturn’s magnetic field so much that the field is rotating slower than the planet. This phenomenon makes it nearly impossible to measure the…
Cassini Significant Events 03/14/07 – 03/20/07
Cassini Significant Events 03/14/07 – 03/20/07 March 22, 2007 (Source: Cassini Project) The most recent spacecraft telemetry was acquired on Tuesday, March 20, from the Goldstone tracking complex. The Cassini spacecraft is in an excellent state of health and all…
NASA – Developing Sunspot
Hinode’s Solar Optical Telescope (SOT) provides crystal-clear images of features on the sun’s surface. This video shows a whirl of a new developing sunspot colliding with an existing spot that explodes into a major solar flare. The solar flare shown…
Spring Migration: Ruby-throated Hummingbirds Reach U.S.
The sunlight dawdles a little longer at the end of each day, tiny bright green buds appear on trees and plants, and temperatures mellow: springtime is returning to the Northern Hemisphere. March 21, 2007, marks the first full day of…
Saturn Stars in Three Hubble Movies
Photogenic Saturn has now become a movie star. Astronomers have woven NASA Hubble Space Telescope images of Saturn, its rings, and several of its moons into three movies. Each movie highlights unique times in the planet’s 30-year waltz around the…
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