Near-Earth Object Search Gets More Money

The Catalina Sky Survey (CSS) has just been awarded an additional $4.1 million, in funds from the American space agency. The money will be used to improve the effort’s ability to discover near-Earth objects that could pose a risk to our planet.

Based at the University of Arizona in Tucson (UAT), the CSS is constantly scanning the night sky in search of indications that asteroids or meteorites are heading this way. Lately, astronomers have begun warning governments that they would do well to invest in planetary defense systems.

There is currently no way of deflecting an asteroid on final approach to Earth, so the best hope we have of surviving such a potential encounter is to act with plenty of time to spare. In turn, this implies discovering the potential threat well in advance.

By awarding these new funds, NASA has taken a much-needed step in this direction. With this monetary influx, the CSS will be upgraded and capable of conducting surveys until 2015.

Last year alone, astronomers working with this survey were able to discover 586 asteroids, which is the equivalent of nearly two thirds of all near-Earth objects discovered last year around the world.

The CCS was even able to track an asteroid as it was heading towards Earth. It kept tabs on the space rock until it entered Earth’s atmosphere, and then crashed somewhere in the northern parts of Sudan.

“NASA has recognized that over the last seven years, our program has constantly strived to improve its performance, and has collaborated with others to find new ways to exploit the nearly 1,000 images we take every night with our two telescopes in the mountains north of Tucson,” says Edward Beshore.

“I think NASA recognizes the CSS as a valuable service to, well, humanity,” adds the expert, who holds an appointment as the principal investigator of the Catalina Sky Survey.

In addition to helping improve the collaboration’s main telescope, the funds will also be used to develop more advanced tracking software, and to enable the installation to scan the night sky for more nights each month.

“We image the entire sky every month with our telescope on Mt. Bigelow in partnership with colleagues at Caltech who had developed software to search for changes in the stationary cosmic objects,” Beshore goes on to say.

“Almost as fast as we can acquire the data, they are able to detect changes in the brightness of stars and galaxies that can reveal important clues about objects millions of times farther away than the asteroids we search for,” he concludes, quoted by Space.

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