the skeptics society is a nonprofit organization that investigates extraordinary claims and promotes science and critical thinking.

news. for us. for a change.

nasa.gov brings you the latest news, images and videos from america's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.

트윙클에서 수업 자료, 강의 계획서, 평가 자료, 파워포인트, 교육 아이디어를 지금 바로 다운받아보세요!

organization dedicated to american indian language preservation provides vocabulary lists, links, and online information about each native american language and the indigenous people who speak it. directed by laura redish and orrin lewis.

instrumento de divulgación e investigación, sobre la literatura que se ha escrito en méxico a través de los siglos. podrá leerse una biografía intelectual de los autores, los datalles de libros y ediciones digitales de los mismos.

daily science news on research developments, technological breakthroughs and the latest scientific innovations