The European Geostationary Navigation Overlay Service (EGNOS) is a satellite based augmentation system developed by the European Space Agency (ESA), the European Commission and EUROCONTROL.

The EGNOS system provides additional signals to users of satellite navigation services, broadcast through geostationary satellites, guaranteeing the integrity of satellite navigation so that it can be used in support of safety-of-life services such as civil aviation.

It supplements the GPS, GLONASS and Galileo systems by reporting on the reliability and accuracy of the positioning data. The official start of operations was announced by the European Commission on 1 October 2009.

According to specifications, horizontal position accuracy should be better than seven metres. In practice, the horizontal position accuracy is at the metre level. The EGNOS system consists of three geostationary satellites and a network of ground stations.

The system started its initial operations in July 2005, showing outstanding performances in terms of accuracy (better than two metres) and availability (above 99%); and it was certified for use in safety of life applications in March 2011. An EGNOS Data Access Service is also available since July 2012.

Similar service is provided in North America by the Wide Area Augmentation System (WAAS), and in Asia, notably Japan, by the Multi-functional Satellite Augmentation System (MSAS).

Wenchang Satellite Launch Center (WSLC), located near Wenchang on the north-east coast of Hainan Island, is a former sub-orbital test center currently under upgrade (Nov. 2012).

It is the fourth and southernmost space vehicle launch facility (spaceport) of China. It has been specially selected for its low latitude, which is only 19 degrees north of the equator, which will allow for a substantial increase in payload, necessary for the future manned program, space station and deep space exploration program. Furthermore, it will be capable of launching the new heavy lift Long March 5 booster currently under development.

Unlike the Space Centers on the mainland whose rail tracks are too narrow to transport the new five meter core boosters, Wenchang can use its sea port for deliveries. 

The Xichang Satellite Launch Center (XSLC) is a China space vehicle launch facility (spaceport) approximately 64 km northwest of Xichang, in Sichuan, China.

The facility became operational in 1984 and is primarily used to launch powerful thrust rockets and geostationary communications and weather satellites. It is notable as the site of Sino-European space cooperation, with the launch of the first of two Double Star scientific satellites in December 2003. 

the company Globalstar USA LLC is operating the satellite constellation Globalstar.

This is a low Earth orbit (LEO) satellite constellation for satellite phone and low-speed data communications, somewhat similar to the Iridium satellite constellation and Orbcomm satellite systems.

Globalstar is a low Earth orbit (LEO) satellite constellation for satellite phone and low-speed data communications, somewhat similar to the Iridium satellite constellation and Orbcomm satellite systems.

The Globalstar project was launched in 1991 as a joint venture of Loral Corporation and Qualcomm. On March 24, 1994, the two sponsors announced formation of Globalstar LP, a limited partnership established in the U.S., with financial participation from eight other companies, including Alcatel, AirTouch, Deutsche Aerospace, Hyundai and Vodafone.

Now operated by the American company Globalstar USA, LLC.

The Southwest Research Institute (SwRI),  is one of the oldest and largest independent, nonprofit, applied research and development (R&D) organizations in the USA. 

SwRI provides contract research and development services to government and industrial clients. Among several areas of activities, SwRI comptence cover Space Science and Engineering.

It is headquartered in San Antonio, Texas, USA. It was founded in 1947. 

Planetary Resources Inc. is an American company based in Washington, USA.

Planetary Resources, Inc.'s goal is to "expand Earth's natural resource base" by developing and deploying the technologies for asteroid mining. 

Though the long-term goal of the company is to mine asteroids, its initial plans call for developing a market for small (30–50 kg) cost-reduced space telescopes for both Earth observation and astronomy.

It is was formed in November 2010 (formerly known as Arkyd Astronautics), reorganized and renamed in 2012.

ArchAtlas is a web-orientated archaeological mapping and research project. It is developed at the Department of Archaeology, University of Sheffield, UK.

The ArchAtlas project aims to provide a visual summary of spatial processes in prehistoric and early historic times, such as the spread of farming, the formation of trade contacts, and the growth of urban systems, and to illustrate the locations of key archaeological sites. It uses GIS techniques to integrate georeferenced information on archaeological sites, cultural entities and contact routes with environmental data and satellite imagery.

The Society for Popular Astronomy is a national astronomical society based in the United Kingdom for beginners to amateur astronomy.

It was founded in 1953 as the Junior Astronomical Society.

The European Association of Remote Sensing Companies (EARSC) is a non-profit-making organisation which is actively involved in coordinating and strengthening the Earth-observation (EO) chain and promoting the European geo-information industry.

EARSC is open to corporative and observer members with deeply interest in providing services delivering information based on observations of the Earth and its environment.

Since 1989, EARSC has provided its Members technical expertise and policy guidance. The Association maintains close links with key European Institutions, including Industry, ESA and National Space Agencies, providing a key unified voice on wider European issues.