- NASA - The National Aeronautics and Space Administration (NASA) is the United States government agency responsible for the civilian space program as well as aeronautics and aerospace research.
- Roskosmos - The Russian Federal Space Agency, commonly called Roscosmos and abbreviated as FKA and RKA, is the government agency responsible for the Russian space science program and general aerospace research.
- ESA - The European Space Agency is an intergovernmental organisation dedicated to the exploration of space with 22 member states.
- CNES - The Centre national d'études spatiales is the French government space agency.
- JAXA - The Japan Aerospace Exploration Agency is Japan's national aerospace agency.
- DLR - The German Aerospace Center, is the national center for aerospace, energy and transportation research of the Federal Republic of Germany.
- CNSA - The Asia-Pacific Space Cooperation Organization is an inter-governmental organization operated as a non-profit independent body with full international legal status.
- ISRO - The Indian Space Research Organisation is the space agency of the Indian government.
Space thematics sites
- space.com - is a space and astronomy news website. Its stories are often syndicated to other media outlets, including CNN, MSNBC, Yahoo!, and USA Today.
- www.technology.org - website publishes information about various science and technology topics.
- www.reddit.com - is an entertainment, social networking, and news website where registered community members can submit content, such as text posts or direct links, making it essentially an online bulletin board system. Chapter /r/space is dedicated to the insightful and thoughtful discussion of outer space
- www.iflscience.com - creative science.
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