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comet
hyperbolic comet
hyperbolic comet A comet whose orbit around the Sun has an eccentricity greater than 1.0. Periodic comets may be injected into hyperbolic orbits following passage close to Jupiter, as with Comet
Lexell in 1779. Comets on such trajectories are lost to the Solar System. Some comets making their first visit to the inner Solar System from the
Oort Cloud may follow hyperbolic trajectories, never to return. The possibility that some hyperbolic comets come from outside the Solar System cannot be excluded.
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Comets give clues to solar system's infancy: New studies chronicle the breakup of a comet that sheds light on early planet formation.(USA)
Newspaper article from: The Christian Science Monitor; 5/18/2001; 700+ words
; ...the distance to a comet in 1577, however, it put comets on the watch list...borne assault on comets is under way...encounter with comet 19P/Borrelly...European missions to comets. Beyond Deep Space...currently en route to comet 81P/Wild 2...
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 "Daily Herald (Arlington Heights, IL)")
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Comets do well at two tournaments.(Neighbor)
Newspaper article from: Daily Herald (Arlington Heights, IL); 8/13/2005; 700+ words
; ...St. Charles 14U Comets Purple team continued...game was a 5-2 Comet win over the Lyons...drove in all five Comet runs. Pitcher Jamie...through six until the Comets sparked in the last...off a four-run Comet sixth and a 4-2...of reach once the Comets pulled out to a 5...
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Comets vary in size and often seen 'close' to Earth.(Neighbor)(Kids ink)
Newspaper article from: Daily Herald (Arlington Heights, IL); 9/21/2005; 700+ words
; ...Spangenburg and Kit Moser - "Comets, Asteroids, and Meteorioids...Rau "How often does a comet pass Earth?," asks...Montessori in Grayslake. A comet is a ball of ice and...speeds through space. Comets are as old as the beginning...solar system. When a comet streaks across the sky...
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Comets: NASA set to investigate vagabonds of night sky
News Wire article from: University Wire; 2/11/2002; ; 700+ words
; ...considered an expert on comets. The thinking is that the tail of a comet can be likened to...Schwassmann-Wachmann-3 comet in 2006. Both comets orbit the sun...exactly makes up a comet' s center. Scientists want to compare comets' composition with...
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 "Post-Tribune (IN)")
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COMETS: TRAILBLAZERS OF SPACE
Newspaper article from: Post-Tribune (IN); 1/5/1997; 700+ words
; ...the nucleus of the comet, perhaps thousands of miles." Comets, despite the media...origin and nature of comets, though pictures...information. The comet is about 90 percent...you want to view a comet, you need to look...be different." Comets are not, he said...
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Comets: mudballs of the solar system? (infrared images reveal trails of true grit)
Magazine article from: Science News; 3/14/1992; ; 700+ words
; ...primordial recipe for making comets required about equal...different picture of what the comet nucleus could be...sculpt some of the comet's expelled gas into...idiosyncrasies about comets. Sykes and his colleagues don't dispute that a comet's nucleus contains...
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COMETS INCOMING
Newspaper article from: The Boston Globe; 2/19/1996; ; 700+ words
; ...Hyakutake. By late March, Comet Hyakutake could be brighter...the Big Dipper. "This comet looks like it's not...of past predictions of comets such as the infamous...miles away. Only four comets have come closer to Earth...reveal details of the comet's nucleus. The nucleus...
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Comet Ready to Light Up Sky // Hyakutake Expected to Be Brightest Show in 20 Years
Newspaper article from: Chicago Sun-Times; 3/20/1996; ; 700+ words
; ...Predicting spectacular comets is risky. Witness the hype surrounding Halley's comet in 1986 and the infamous...will be the brightest comet since comet West in 1976. "Predicting the brightness of comets is a very tricky business...
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Comet leaves a trail of records Despite light pollution, Hale-Bopp sets mark for visibility
Newspaper article from: The Boston Globe; 4/26/1997; ; 700+ words
; ...astronomer and longtime comet watcher in Stormville...observed more than 200 comets (a record matched...That's why this comet, he said, has become...question," of all comets in history. Even last year's Comet Hyakutake was a "millennium...
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Comet Systems Releases Comet Cursor Version 1.1, Putting Web Surfers in Control of Their Cursors.
PR Newswire; 11/30/1998; 700+ words
; NEW YORK, Nov. 30 /PRNewswire/ -- Comet Systems today announced a major upgrade to its innovative Comet Cursor technology. In response to user and Web developer demand, Comet has integrated several new features into the upgrade -- Comet...
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Comets, Predicting
Book article from: Mathematics
...If you find a new comet, it will bear your name! What Are Comets? Aristotle thought...material away from the comet, forming the long...are the hallmark of comets. The gas is blown...comet. Halley's comet is probably the most...the short period comets. It is expected...
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Comets
Book article from: Space Sciences
Comets A bright comet is a spectacular astronomical...first to calculate the orbits of comets. Comet Halley's orbit has an average...asteroids are extinct or dormant comet nuclei. The Composition of Comets The composition of cometary nuclei...
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comet
Book article from: The Columbia Encyclopedia, Sixth Edition
...and 1986 (see Halley's comet ). While some comets appear to have parabolic...attraction. Structure of Comets A comet far from the sun consists...Biela did in 1846, and Comet West did in 1976. The comas of comets vary widely in size, some...
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Comet Hale-Bopp
Encyclopedia entry from: The Gale Encyclopedia of Science
...spectacular lightshow as Comet Hale-Bopp, one of the brightest comets seen during the twentieth...nicknamed The Great Comet of 1997 because of...object was renamed Comet Hale-Bopp. Hale...the most spectacular comets to appear in the twentieth...
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Comets and Meteorites, Water in
Book article from: Water:Science and Issues
...The Sun is slightly older. Comets, consisting of ice and grains...surface of planetary bodies.) Comets may have rocky cores as well...granular character extends to comet tails, which form by ablation as comets approach the Sun and the ice...
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