| Rank | Count | Feed | Subscribe |
| 1 | 32 | noticias.info |  
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| 2 | 29 | Science/AAAS | Scientific research, news and career information |
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| 3 | 23 | genciencia |
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| 4 | 22 | Science News from Scientific American: The latest science and technology news |
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| 5 | 19 | MalaCiencia |
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| 6 | 12 | New Scientist - The World's No.1 Science & Technology News Service |
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| 7 | 12 | http://www.nytimes.com/pages/science/index.html?partner=rssnyt |
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| 8 | 11 | Ciencia15 - Comentarios a noticias cient�ficas y t�cnicas |
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| 9 | 10 | Historias de la ciencia |
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| 10 | 10 |
El PaleoFreak
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| 11 | 9 | http://www.nature.com/nature/current_issue/ |
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| 12 | 9 | CPI (Curioso pero inútil) |
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| 13 | 9 | Por La Boca Muere El Pez |
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| 14 | 8 | Tendencias 21 |
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| 15 | 8 | Free RSS News Feeds, Free Custom RSS News Feeds - Moreover Technologies |
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| 16 | 7 | CPI (Curioso pero inútil) |
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| 17 | 7 | Ciencia @ NASA |
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| 18 | 7 | NASA -
Breaking News
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| 19 | 7 | del.icio.us/tag/ciencia |
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| 20 | 7 | SONDASESPACIALES.COM |
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| 21 | 7 | Cricyt - Conicet | Centro Regional de Investigaciones Cientificas y Tecnologicas |
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| 22 | 7 | PhysOrg.com : Science, Physics, Technology, Nanotechnology, Space News |
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| 23 | 6 | Novedades Cient�ficas |
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| 24 | 6 | Tempus Fugit |
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| 25 | 6 |
Astroseti : Astronom�a, Astrobiolog�a, Astronautica y SETI |
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| 26 | 6 | Evolucionarios |
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| 27 | 6 | http://www.washingtonpost.com/wp-dyn/content/nation/science/index.html?nav=rss_nation/science |
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| 28 | 6 | Astronomy Picture of the Day
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| 29 | 6 | Tio Petros |
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| 30 | 6 | Science Blog |
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| 31 | 6 | Cuaderno de bit�cora |
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| 32 | 6 | El Lobo Rayado |
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| 33 | 6 | Latest News and Financial Information | Reuters.com |
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| 34 | 6 | The Seattle Times: Boeing and aerospace news and features |
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| 35 | 5 |
The top science news articles from Yahoo! News |
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| 36 | 5 | EurekAlert! - Science News |
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| 37 | 5 | Tecnología Obsoleta |
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| 38 | 5 | Magonia |
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| 39 | 5 | news @ nature.com - - latest science news & features |
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| 40 | 4 | Gluon con Leche |
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| 41 | 4 | BBC NEWS | Science/Nature |
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| 42 | 4 | Sinapsis |
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| 43 | 4 | Ciencia de bolsillo |
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| 44 | 4 | InfoCiencia |
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| 45 | 3 | Folha Online - Ci�ncia |
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| 46 | 3 | Orígenes |
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| 47 | 3 | info.astro |
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| 48 | 3 | http://www.newscientist.com/hottopic/gm-food |
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| 49 | 3 | NeoFronteras - Portada - Ciencia y Tecnología - Noticias |
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| 50 | 3 | iMente - Seguimientos de prensa digital en tiempo real. Servicios de titulares para web |
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| 51 | 3 | New Scientist Expert Coverage of Opinion Comment Politics Analysis |
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| 52 | 3 | CIENCIA VS. FICCIÓN |
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| 53 | 3 | CONSUMER.es EROSKI ::: Noticias |
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| 54 | 3 | Juan de Mairena [v.2.718] |
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| 55 | 3 | La Coctelera: "Un mar de historias" - Inicio |
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| 56 | 3 | LiveScience.com |
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| 57 | 3 | Slashdot: News for nerds, stuff that matters |
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| 58 | 3 | Mind Hacks |
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| 59 | 3 | New Scientist Tech - Special Report on Nanotechnology |
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| 60 | 3 | http://www.newscientist.com/hottopic/quantum-world |
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| 61 | 3 | Learn More at Space.com. From Satellites to Stars, NASA information, Astronomy, the Sun and the Planets, we have your information here. |
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| 62 | 3 | Tio Petros |
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| 63 | 2 | New Scientist Expert Coverage of Fundamentals Physics Mathematics Basic Biology |
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| 64 | 2 | SpaceRef - Space News As It Happens |
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| 65 | 2 | Science@NASA RSS Feed |
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| 66 | 2 | NASA - Science@NASA |
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| 67 | 2 | http://www.newscientist.com/hottopic/electronic-threats |
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| 68 | 2 | Ci�ncia em Dia - UOL Blog |
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| 69 | 2 | BBC NEWS | Science/Nature |
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| 70 | 2 | HowStuffWorks - Learn how Everything Works! |
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| 71 | 2 |
Diario Espacial |
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| 72 | 2 | National Geographic News |
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| 73 | 2 | Librys.com |
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| 74 | 2 | RealClimate » Climate Science |
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| 75 | 2 | EEA - Data service |
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| 76 | 2 | Historias de la ciencia |
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| 77 | 2 | La Jornada > Ciencias |
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| 78 | 2 | http://www.newscientist.com/hottopic/climate-change |
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| 79 | 2 | Astronomia |
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| 80 | 2 | :: Agência FAPESP - Divulgando a cultura científica ::
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| 81 | 2 | http://www.nytimes.com/pages/science/index.html?partner=rssuserland |
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| 82 | 2 | NASA -
Image of the Day Gallery
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| 83 | 2 | New Scientist Expert Coverage of Being Human Behaviour Psychology Anthropology |
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| 84 | 2 | http://www.newscientist.com/hottopic/dinosaurs |
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| 85 | 2 | New Scientist Tech - International News, Ideas, Innovation |
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| 86 | 2 | Astronom�a |
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| 87 | 2 | Universe Today - Space and Astronomy News |
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| 88 | 2 | Physics Today May 2006 |
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| 89 | 2 | Planetaciencia |
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| 90 | 2 | APOD: 2005 August 12 - A Meteor Shower Fireball Movie
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| 91 | 2 | MURMULLOS DEL ESPACIO |
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| 92 | 1 | News (May 2006) - PhysicsWeb |
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| 93 | 1 | http://www.agujero.com |
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| 94 | 1 | Urban Legends Reference Pages: What's New |
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| 95 | 1 | http://bajoelvolcan.blogalia.com/ |
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| 96 | 1 | http://micko.blogspot.com |
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| 97 | 1 | http://redespunset.blogspot.com |
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| 98 | 1 | Acertijos y Peque�os Enigmas |
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| 99 | 1 | http://www.idrc.ca |
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| 100 | 1 | Juan Freire |
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