Science News for Kids » photon http://www.sciencenewsforkids.org Publication of the Society for Science & the Public Thu, 23 May 2013 17:00:53 +0000 en-US hourly 1 http://wordpress.org/?v=3.5.1 Twinkle, twinkle oldest stars http://www.sciencenewsforkids.org/2012/11/twinkle-twinkle-oldest-stars/ http://www.sciencenewsforkids.org/2012/11/twinkle-twinkle-oldest-stars/#comments Wed, 21 Nov 2012 05:01:04 +0000 Stephen Ornes http://www.sciencenewsforkids.org/?p=14928 Blazars are bright galaxies that send high-powered radiation jets directly toward Earth. They can be used to detect the light in the universe left over from every star that ever shone. In this image, the blazars are shown as green dots; the Milky Way glows orange in the middle. Credit: NASA, DOE, Fermi LAT Collaboration

Astronomers find traces of ancient light in the activity of bright, distant galaxies]]> Blazars are bright galaxies that send high-powered radiation jets directly toward Earth. They can be used to detect the light in the universe left over from every star that ever shone. In this image, the blazars are shown as green dots; the Milky Way glows orange in the middle. Credit: NASA, DOE, Fermi LAT Collaboration

Astronomers find traces of ancient light in the activity of bright, distant galaxies]]> http://www.sciencenewsforkids.org/2012/11/twinkle-twinkle-oldest-stars/feed/ 0