The Bureau International des Expositions (BIE) is the intergovernmental organization in charge of overseeing and regulating World Expos, also known as World's Fairs. Since 1931
NASA’s award-winning Space Place website engages upper-elementary-aged children in space and Earth science through interactive games, hands-on activities, fun articles and short videos. With material in both English and Spanish and numerous resources for kids, parents and teachers, Space Place has something for everyone.
Website en español de la Fundación No-proliferación para la Seguridad Global - NPSGlobal. Noticias de actualización diaria, artículos académicos, información institucional, links de interés, materiales educativos, sección interactiva y todo lo necesario para comprender los dilemas de la seguridad global.
A nonpartisan nonprofit dedicated to reducing and eventually eliminating the threats posed by nuclear, chemical and biological weapons through Congressional engagement and public education.
The Nuclear Threat Initiative (NTI) is a non-profit, non-partisan organization working to protect our lives, livelihoods, and the environment from nuclear, biological, radiological, chemical and cyber dangers.
The Basic Local Alignment Search Tool (BLAST) finds regions of local similarity between sequences. The program compares nucleotide or protein sequences to sequence databases and calculates the statistical significance of matches. BLAST can be used to infer functional and evolutionary relationships between sequences as well as help identify members of gene families.
PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more.
The Internet Society is a global nonprofit empowering people to keep the Internet a force for good: open, globally connected, secure, and trustworthy. Join us.