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The Astronomical Society of the Pacific increases the understanding and appreciation of astronomy by engaging scientists, educators, enthusiasts and the public to advance science and science literacy.

The Astronomical Applications Departmentof the U.S. Naval Observatory computes, from fundamental astronomicalreference data, the position, brightness, and other observablecharacteristics of celestial bodies, as well as the circumstancesof astronomica...

The Master Clock for the United States.

Main page to the University of Texas at Arlington Website. Contains links to institutional information and academic information as well as many other service provided by UTA.

Quizlet is a lightning fast way to memorize vocabulary lists. It

Prezi is the zooming presentation editor

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...

Diccionario en l

The best source for top-notch calculators, games, widgets, software and other fascinating resources.

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