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Recent Articles
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Topic: Comet ISON
Since its launch on February 11th, 2010, SDO has collected millions of scientific images of our nearest star, giving scientists new insights into its workings. «Read the rest of this article» Sections: Technology | No Comments
NASA’s Chandra X-ray Observatory studies Comet ISON and Comet PanSTARRSWritten by Molly Porter
While comets are inherently interesting, they can also provide information about other aspects of our Solar System. More specifically, comets can be used as laboratories to study the behavior of the stream of particles flowing away from the Sun, known as the solar wind. Recently, astronomers announced the results of a study using data collected with NASA’s Chandra X-ray Observatory of two comets — C/2012 S1 (also known as “Comet ISON”) and C/2011 S4 (“Comet PanSTARRS”). ![]() The Comets ISON and PanSTARRS in optical images taken by an astrophotographer, with insets showing the X-ray images from Chandra. (X-ray: NASA/CXC/Univ . of CT/B.Snios et al, Optical: DSS, Damian Peach ( damianpeach.com )) «Read the rest of this article» Sections: Technology | No Comments
NASA prepares Spacecraft for Comet Siding Spring’s flyby of MarsWritten by Guy Webster
On that date, comet 2013 A1 Siding Spring will buzz Mars about 10 times closer than any identified comet has ever flown past Earth. Spacecraft at Mars might get a good look at the nucleus of comet Siding Spring as it heads toward the closest approach, roughly 86,000 miles (138,000 kilometers) from the planet, give or take a few percent. ![]() This graphic depicts the orbit of comet C/2013 A1 Siding Spring as it swings around the sun in 2014. On Oct. 19, the comet will have a very close pass at Mars, just 86,000 miles ( 138,000 kilometers) from the planet. Although the nucleus will miss the planet, the comet’s coma of dust particles might envelop the Red Planet. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Galileo spacecraft discovers Clay Like Minerals on Jupiter’s Moon EuropaWritten by Jia-Rui C. Cook
This is the first time such minerals have been detected on Europa’s surface. The types of space rocks that deliver such minerals typically also often carry organic materials. ![]() This image, using data from NASA’s Galileo mission, shows the first detection of clay-like minerals on the surface of Jupiter’s moon Europa. (NASA/JPL-Caltech/SETI) «Read the rest of this article» Sections: Technology | 1 Comment »
NASA takes a look at the passing of Comet ISONWritten by Dr. Tony Phillips
Some comets like it hot, but Comet ISON was not one of them. The much-anticipated flyby of the sun by Comet ISON on Thanksgiving Day 2013 is over, and instead of becoming a Great Comet…. «Read the rest of this article» Sections: Technology | No Comments
NASA takes a close look at the passing Comet ISONWritten by Karen C. Fox
The question remains as to whether the bright spot seen moving away from the sun was simply debris, or whether a small nucleus of the original ball of ice was still there. Regardless, it is likely that it is now only dust. «Read the rest of this article» Sections: Technology | No Comments
NASA details Comet ISON’s encounter with a Solar StormWritten by Tony Phillips
The same thing could be in store for Comet ISON–only worse. On November 28th, Comet ISON will pass through the sun’s atmosphere, flying little more than a million kilometers above the sun’s surface. It will be ~30 times closer to the sun than Encke was in 2007 and more likely to encounter a ferocious solar storm. «Read the rest of this article» Sections: Technology | No Comments
NASA demonstrates how a Comet can be Cooked by the SunWritten by Susan Hendrix
Before it reaches Mars — at some 230 million miles away from the sun — the radiation of the sun begins to boil its water, the first step toward breaking the comet apart. And, if it survives all this, the intense radiation and pressure as it flies near to the surface of the sun could destroy it altogether. «Read the rest of this article» Sections: Technology | No Comments
NASA asks “What’s next for Comet ISON?”Written by Dr. Tony Phillips
The comet is putting on a good show for observatories around the solar system, especially after an outburst on November 13th-14th that boosted the comet’s brightness 10-fold. NASA spacecraft and amateur astronomers alike are snapping crisp pictures of the comet’s gossamer green atmosphere and suddenly riotous tail. ![]() Comet ISON photographed on November 15th by amateur astronomer Mike Hankey of Auberry, California. The comet’s bright head and riotous tail are consequences of an outburst on November 13th-14th that significantly boosted the comet’s level of activity. «Read the rest of this article» Sections: Technology | No Comments
NASA reports Comet Encke and Comet ISON to Fly the planet MercuryWritten by Tony Phillips
“This is a unique coincidence,” says Ron Vervack an astronomer at the Johns Hopkins University Applied Physics Lab and a member of the science team for NASA’s MESSENGER spacecraft, “and a golden opportunity to study two comets passing close to the sun.” «Read the rest of this article» Sections: Technology | No Comments
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