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Record number of asteroids spotted
by Staff Writers
Honolulu (UPI) Feb 25, 2011

disclaimer: image is for illustration purposes only

Astronomers using a telescope on the island of Maui in Hawaii said they discovered 19 near-Earth asteroids Jan. 29, the most ever found in a single night.

Scientists at the Pan-STARRS PS1 telescope on Haleakala, Maui, said the record demonstration of the year-old telescope's capabilities was made possible by recent software improvements and refinements in observational techniques, the Honolulu Star-Advertiser reported Friday.

In the past, the telescope had generated false detections that made it difficult to discern real and phantom asteroids, astronomers said.

During the Jan. 29 demonstration, the astronomers took four exposures, one after the other, to ensure accurate observation, Pan-STARRS project head Nick Kaiser said.

While the project receives funding from NASA and the U.S. Air Force for its asteroid-detecting activities, it is also involved in other studies, Kaiser said.

"We're not funded exclusively for this, but we thought we'd do it as a demonstration," he said. "We hope to generate more funding for (asteroid detection)."

While the chance of near-Earth asteroids actually colliding with Earth is remote, roughly a 1-in-1,000 chance, knowing their whereabouts will allow governments to act should the unlikely actually develop into a real threat, Kaiser said.

"It's like the risk developing a rare disease," he said. "The chance that it will actually happen is small, but the risk, whatever it is, is real. You want to find out if it will happen."


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Car-size asteroid nears Earth Wednesday
Pasadena, Calif. (UPI) Feb 9, 2011
A car-size asteroid will pass near Earth Wednesday, U.S. scientists said, while one bigger than two football fields might hit Earth in 18 years. The 2011 CA7 asteroid, measuring 9 1/2 feet across, will be 64,300 miles overhead Wednesday, reaching its closest point around 2:25 p.m. EST, said NASA's Jet Propulsion Laboratory in Pasadena, Calif. A 4-foot-wide asteroid called 2011 CQ ... read more

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