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Yahoo! My Yahoo! Mail More Yahoo! Services Account Options New User? Sign Up Sign In Help Yahoo! Search web search Home Singapore Asia Pacific World Business Entertainment Sports Technology Top Stories Most Popular Photos Sitemap Herschel telescope shows galactic star formation is slowing AFP - Friday, May 7 Send IM Story Print The Herschel telescope is the biggest ever sent into space. New star formations in spiral galaxies such as the Milky Way have declined five-fold in the last three billion light years, according to the first findings of the European Space Agency's Herschel telescope. NOORDWIJK, Netherlands (AFP) - – The formation of new stars in galaxies like the Milky Way has declined five-fold in the last three billion years, initial findings of the European Space Agency's Herschel telescope showed Thursday. While scientists already knew that star formation was more prolific billions of years ago, the Herschel telescope has for the first time been able to start measuring the rate of decline, scientist Steve Eales said at the launch. Three billion years ago "galaxies were forming stars at ... five times the rate we know today," he told AFP at the agency's offices in Noordwijk in the western Netherlands. Eales said the Herschel telescope's infrared technology allowed scientists to see galaxies, mainly spiral ones like the Milky Way, that were previously hidden from scientists' view by cosmic dust clouds. The telescope, launched a year ago to study star formation, is the biggest ever sent into space, orbiting at a distance of 1.5 million kilometres (932,000 miles) from the Earth. Scientists already knew that 10 billion years ago "there were these galaxies that were forming stars really fast," said Eales, but previous telescopes were unable to see up to a distance of 10 billion light years. "We haven't been able to fill that gap until today. "What Herschel has been able to do because of the wave length it is observing at, it can suddenly see lots of galaxies in the nearby universe, up to about the last three or four billion light years. It can fill the gap in cosmic history," Eales said. The findings suggested, he said, that "at some point stars will stop forming" altogether, unless solar conditions changed. Scientists did not know the reasons for the decline. Researchers also told the launch that Herschel had managed to spot an embryonic "massive star" -- a celestial object more than eight times the size of our sun. "Massive stars are rare and short-lived," said an ESA statement. "To catch one during formation presents a golden opportunity to solve a long-standing paradox in astronomy." Scientist Annie Zavagno said that radiation emitted by massive stars should destroy them at some point -- instead they continue to grow. According to accepted scientific principles, stars should not be able to become more than eight times bigger than our sun. Understanding how these "impossible" stars were formed was critical because they "control the dynamical and chemical evolution of galaxies," said Zavagno. The ESA's director of science and robotic exploration, David Southwood, said "a new universe" was emerging from Herschel's findings. "We can look at the complex chemistry that goes on in space that ultimately has created the things that we are made of," he said. Recommend Send IM Story Print News Search Top Stories Voters cast ballots in pubs, caravans Panic-hit Dow crashes down nearly 1,000 points, recovers European markets sag further, ECB fails to reassure Herschel telescope shows galactic star formation is slowing ECB chief rules out Greek default, euro slides More Top Stories » ADVERTISEMENT Most Popular Most Viewed Most Recommended Lack of sleep linked to early death: study Freddie Mac asks for fresh 10.6 billion dollar bailout BP 'dome' carries hopes of averting oil catastrophe Euro falls under $1.29 Greek unions call protests ahead of austerity vote More Most Viewed » Aliens may exist but contact would hurt: Hawking Lack of sleep linked to early death: study Apple engineer loses iPhone prototype French driving veil row escalates Airlines want compensation as Europe's skies reopen More Most Recommended » Elsewhere on Yahoo! Financial news on Yahoo! Finance Stars and latest movies Best travel destinations More on Yahoo! News Home Singapore Asia Pacific World Business Entertainment Sports Technology Subscribe to our news feeds Top StoriesMy Yahoo!RSS » More news feeds | What are news feeds? Also on Yahoo Answers Groups Mail Messenger Mobile Travel Finance Movies Sports Games » All Yahoo! Services Site Highlights Singapore Full Coverage Most Popular Asia Entertainment Photos World Cup 2010 Copyright © 2010 Yahoo! Southeast Asia Pte. Ltd. (Co. Reg. No. 199700735D). All Rights Reserved. Terms of Service | Privacy Policy | Community | Intellectual Property Rights Policy | Help

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