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European Space Agency

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European Space Agency
Image:ESA LOGO.svg
Owner
Established 1974
Headquarters Paris, France
Pri. spaceport Guiana Space Centre
Administrator Jean-Jacques Dordain
Budget 2.9 ($4.260) bn (2007)
Website www.esa.int

The European Space Agency (ESA), established in 1974, is an intergovernmental organisation dedicated to the exploration of space, currently with 17 member states. Headquartered in Paris, ESA has a staff of about 1,900 with an annual budget of about €2.9 billion in 2007.

ESA's main spaceport is Guiana Space Centre in Kourou, French Guiana (French territory). It is close to the equator, hence commercially important orbits are easier to access. ESA became the market leader in commercial space launches in the 1990s. In recent years, ESA has also established itself as a major player in space exploration.

ESA science missions are based at ESTEC in Noordwijk, Netherlands, Earth Observation missions at ESRIN in Frascati, Italy, ESA Mission Control (ESOC) is in Darmstadt, Germany, and the European Astronauts Centre (EAC), that trains astronauts for future missions is situated in Cologne, Germany.

Contents

History

Foundation

After the Second World War, many European scientists had left Western Europe in order to work either in the US or the Soviet Union. Although the booming recovering process of the 1950s made it possible for Western European countries to invest into research and specifically into space related activities, Western European scientists realised solely national projects would not be able to compete with the two major superpowers. In 1958, only months after the Sputnik shock, Edoardo Amaldi and Pierre Auger, two prominent members of the Western European scientific community at that time, met to discuss the foundation of a common Western European space agency. The meeting was attended by scientific representatives from eight countries, including Harrie Massey (UK).

The Western European nations decided to have two different agencies, one concerned to develop a launch system ELDO (European Launch Development Organisation) and the precursor of the European Space Agency, and ESRO (European Space Research Organisation) that was established on March 20, 1964 per an agreement signed on June 14, 1962. From 1968 to 1972 ESRO celebrated its first successes. Seven research satellites were brought into orbit, all by US launch systems.

Image:Geos esa.jpg
GEOS-ESA, a satellite studying the Earth's magnetosphere, launched 1977, an example of early ESA space research activity.

The ESRO's successor organisation ESTEC (European Space Research and Technology Centre, based in Noordwijk, the Netherlands) is still a part of ESA, though ESA itself is a much bigger organisation today. The ESA in its current form was founded in 1974, when ESRO was merged with ELDO. The ESA was constituted of 10 founding members: Belgium, Germany, Denmark, France, United Kingdom, Italy, the Netherlands, Sweden, Switzerland and Spain.[1] ESA launched its first major scientific mission in 1975, Cos-B, a space probe monitoring gamma-ray emissions in the universe.

End of space race

Beginning in the 1970s, when the space race between the US and the Soviet Union had tuned down and space budgets were cut dramatically in both superpowers, ESA established itself as a forerunner in space exploration. ESA joined NASA and the UK in the IUE, the world's first high-orbit telescope, which was launched in 1978 and operated very successfully for 18 years. A number of successful Earth-orbit projects followed, and in 1986 ESA began Giotto, its first deep-space mission, to study the Comets Halley and Grigg-Skejllerup. Hipparcos, a star-mapping mission, was launched in 1989 and in the 1990s SOHO, Ulysses and the Hubble Space Telescope were all jointly carried out with NASA. Recent scientific missions in cooperation with NASA include the Cassini-Huygens space probe, to which ESA contributed by building the Titan landing module Huygens.

Image:Ariane-1.jpg
Launch of an Ariane 1 in Kourou in 1979

As the successor of the ELDO, ESA has also constructed rockets for unmanned scientific and commercial payloads. Ariane 1, launched in 1979, brought mostly-commercial payloads into orbit from 1984 onward. The next two developments of the Ariane rocket were intermediate stages in the development of a more advanced launch system, the Ariane 4, which operated between 1988 and 2003 and did establish ESA as the world leader in commercial space launches in the 1990s. Its successor, the Ariane 5 rocket, has established itself within the heavily competitive commercial space launch market after its first flight which ended in failure in 1997 and prospectively will reach 25 successful launches by 2006.

The beginning of the new millennium saw ESA become, along with agencies like NASA, JAXA, and Roscosmos, one of the major participants in scientific space research. While ESA had relied on cooperation with NASA in previous decades, especially the 1990s, changed circumstances (such as tough legal restrictions on information sharing by the United States military) led to decisions to rely more on itself and on cooperation with Russia. A recent press issue thus stated:

Russia is ESA's first partner in its efforts to ensure long-term access to space. There is a framework agreement between ESA and the government of the Russian Federation on cooperation and partnership in the exploration and use of outer space for peaceful purposes, and cooperation is already under way in two different areas of launcher activity that will bring benefits to both partners.[2]

Most notable for its new self-confidence are ESA's own recent successful missions Smart-1, a probe testing cutting-edge new space propulsion technology, the Mars Express mission as well as the development of the Ariane 5 rocket.

ESA maintains its scientific and research projects mainly for astronomy-space missions such as Corot, launched on 27 December 2006, a milestone in the search for extrasolar planets.

Goals and aims

Mission

Since the Cold War ended with the fall of the Soviet Union's "iron curtain," space agencies around the world had to refocus and revise their visions and goals. In an interview with JAXA, the Japanese Space Agency, Jean-Jacques Dordain ESA's Director General (since 2003) outlined briefly the European Space Agency's mission:[3]

Today space activities are pursued for the benefit of citizens, and citizens are asking for a better quality of life on earth. They want greater security and economic wealth, but they also want to pursue their dreams, to increase their knowledge, and they want younger people to be attracted to the pursuit of science and technology.

I think that space can do all of this: it can produce a higher quality of life, better security, more economic wealth, and also fulfil our citizens' dreams and thirst for knowledge, and attract the young generation. This is the reason space exploration is an integral part of overall space activities. It has always been so, and it will be even more important in the future.

ESA has ambitious space plans that may be divided into three large categories. First, ESA will maintain its scientific and research projects (e.g. tests and developments of new propulsion systems), try to find ways to reduce costs for their rocket fleet while enhancing their capacities, honour its commitments regarding the ISS and engage in further space exploration like the Venus Express mission that was launched in late 2005. The second category has many parallels to NASA's plans and consists of astronomy-space missions such as the Planck Surveyor studying the cosmic microwave background (2008), the Herschel space observatory (2008), and the Darwin interferometer.

While the projects described above are more or less similar in their structure and aim as NASA's and other space agencies' plans, the ESA's Mars project is different. The Aurora Programme lays out a time table for future missions to Mars, however in contrast to NASA's plans there is no emphasis on manned or unmanned lunar missions, it rather includes several flagship missions designed to develop and test technology needed for a manned European Mars mission currently planned for 2030. Among these flagship missions is ExoMars, a mission involving a Mars rover. Until 2005 ExoMars was planned to be a joint mission between NASA and ESA, however obstacles such as American technology law that prohibits sharing of classified space technology information led to ESA deciding to go for it alone. The mission is currently planned to launch in 2013. An even more ambitious Mars project is the Mars Sample Return Mission, that is planned as a follow-up mission to ExoMars. It will involve the first time a probe will return of samples from another planet, making it necessary to construct an ascent module that is capable of starting into Mars orbit and dock with the original probe.

Among the actions for returning the investment to society, they have developed the SCOS 2000 satellite control centre, and they allow the use of it free of charge to any European firm.

To increase the human value of the participating countries, ESA also develops collaborative training programs for students, young graduates and Post Doctorals. Some countries have their own bilateral agreements with ESA like the Portuguese trainees or the Spanish Trainees programs. The return of the trainees to their respective country aims to stimulate their national space industry.

Member countries and structure

     ESA member states     ECS states
     ESA member states     ECS states

ESA comprises the national space organisations and other entities of seventeen countries that participate to various degrees in the mandatory (23% of total expenditures or €667 million in 2005) and optional space programs (72% of total expenditures or €2138 million in 2005):[4][5]

According to the Resolution 8, Annex 1, of the Convention for the establishment of the European Space Agency.[6] all meetings of the agency are held in English, French and German, with translation provided in these three languages. All official documents are available in English and French with all documents concerning the ESA-Council being available in German, too.

Enlargement

Many countries are likely to join ESA in the coming years, especially the countries who were part of the EU-enlargement in 2004 (on 12.6.2007 negotiation about the full membership of the Czech Republic started).[7] In addition ESA entered into important partnership agreements with non-member countries:

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