Welcome to the Science Websites (the "Websites")! Although there is no charge for the use of some portions of the materials contained on the Websites, all the materials are protected under copyright and other laws of the United States, and, under international conventions, similar laws abroad. Please respect the copyrights and related rights of the authors and publishers of the Websites.
Copyright in the materials contained on the Websites, including, but not limited to, the textual material, artwork, photographs, computer software, audio and visual elements, is owned or controlled separately (and as a collective work exclusively) by the American Association for the Advancement of Science ("AAAS"). In addition, copyright in the selection, arrangement, and coordination of materials in the Websites is owned exclusively by AAAS.
Limitations on Use
The contents of the Websites may be viewed, browsed, and/or downloaded for temporary copying purposes only, provided these uses are for noncommercial personal purposes, and further provided that the user maintains all copyright and any other notices, on all copies. Users are not, however, permitted to store in electronic or any other form, any significant portion of the Websites. Except as provided by law, the contents of the Websites may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed (including adaptations/displays such as by "framing"), published, or sold in whole or in part, without the prior written permission from AAAS.
AAAS, Science, Science NOW, Science Careers, Science Signaling, Science Translational Medicine and SAGE KE are trademarks of the American Association for the Advancement of Science. Any use of the marks AAAS, Science, Science NOW, Science Careers, Science Signaling, Science Translational Medicine and SAGE KE in connection with the sale, offering for sale, distribution, or advertising of any goods and services, including any other website, or in connection with labels, signs, prints, packages, wrappers, receptacles, or advertisements used for the sale, offering for sale, distribution or advertising of any goods and services, including any other website, which is likely to cause confusion, to cause mistake or to deceive, is strictly prohibited.
(To return to the sign up page, click your browser's 'Back' button.)