Tuesday, November 27, 2012

FOR KIDS: Twinkle, twinkle oldest stars

Astronomers find traces of ancient light in the activity of bright, distant galaxies

Astronomers find traces of ancient light in the activity of bright, distant galaxies

By Stephen Ornes

Web edition: November 26, 2012

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Blazars are bright galaxies that send high-powered radiation jets directly toward Earth. Here, the blazars appear as green dots; the Milky Way glows orange in the middle.

Credit: NASA, DOE, Fermi LAT Collaboration

A new light-detection technique will allow scientists to spot light from all stars in their field of view and going back to?early in the formation of the universe.

?[This way of looking] provides us with a review of the entire history of cosmic star formation, including the very first epochs of star formation in the very early universe,? says Volker Bromm of the University of Texas at Austin.

Visit the new?Science News for Kids?website?and read the full story:?Twinkle, twinkle oldest stars

Source: http://www.sciencenews.org/view/generic/id/346672/title/FOR_KIDS_Twinkle,_twinkle_oldest_stars___

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