Glossary G

GAIA (Global Astrometric Interferometer for Astrophysics) is a European Space Agency (ESA) mission to study the structure, origin, and evolution of our galaxy.

A galaxy is a large system of stars, gas, and dust that is held together by gravity. Galaxies come in a variety of shapes and sizes, and they can contain anywhere from a few million to several trillion stars The Milky Way, which is the galaxy that contains the Earth and our solar system, is a barred spiral galaxy with a central bar and four arms that contain most of the galaxy's mass.

Galileo Galilei was an Italian physicist and astronomer (1564–1642) .

In the aerospace industry, Galileo is a global satellite navigation system that is operated by the European Union and the European Space Agency (ESA).

GaN stands for gallium nitride. GaN is a semiconductor material that is used in a variety of aerospace applications, including the development of electronics, sensors, and power systems. GaN is known for its high electron mobility and its ability to withstand high temperatures, making it well-suited for use in aerospace applications.

Ganymede is the largest moon of Jupiter and the only moon in the solar system known to have a magnetic field. In the aerospace context, Ganymede is of interest to scientists and researchers because of its potential for scientific exploration and study.

A gasket is a crucial component used in the aerospace industry to create a seal between two or more surfaces, preventing the leakage of fluids, gases, or contaminants in various aerospace applications. These applications range from aircraft engines and fuel systems to spacecraft and satellite propulsion systems. Gaskets come in various materials and designs, each tailored to specific aerospace requirements.

Gasoline or petrol is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines (also known as petrol engines). It consists mostly of organic compounds obtained by the fractional distillation of petroleum, enhanced with a variety of additives.

In the realm of aerospace, a gateway serves as a crucial interface or connection point between various systems, networks, or technologies. It plays a pivotal role in ensuring seamless communication, data transfer, and coordination within and beyond the aerospace industry.

Gauge in the context of the space industry refers to a critical measurement or indicator used to assess various aspects of spacecraft, rockets, and space missions. These measurements are essential for ensuring the safety, functionality, and success of space missions. In this article, we will explore different types of gauges used in the space industry, along with examples and some similar tools and concepts.

The General relativity is the theory of relativity governing accelerated motion that describes gravity as a curvature of space-time.

In the aerospace industry, a generator is a device that converts mechanical energy into electrical energy. Generators are often used on aircraft to provide power for various systems and equipment, such as lighting, avionics, and instruments.

GEO typically stands for "Geosynchronous Equatorial Orbit" which is an orbit around the Earth that is located at an altitude of approximately 35,786 kilometers above the Earth's surface. This is the altitude at which a satellite's orbital period matches the period of the Earth's rotation, so the satellite appears to remain stationary in the sky as viewed from the ground. Geosynchronous orbit is often abbreviated as GSO.

Geology (from Ancient Greek (geo) 'earth', and (-logía) 'study of, discourse') is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time.

Geophysics is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis.

A geosynchronous orbit (sometimes abbreviated GSO) is an Earth-centered orbit with an orbital period that matches Earth's rotation on its axis, 23 hours, 56 minutes, and 4 seconds (one sidereal day).

Germanium is a chemical element with the symbol Ge and atomic number 32.

Germany is a major player in the global aerospace industry, with a long history of innovation and technological leadership. Some of the factors that contribute to Germany's strength in the aerospace industry include:

1. Strong industrial base: Germany has a well-developed and highly-skilled industrial base, which is well-suited to the production of complex aerospace systems and components. The country is home to a number of major aerospace companies, such as Airbus, MTU Aero Engines, and Siemens, which are leading players in the global market.

2. Advanced research and development: Germany is home to a number of top research institutions and universities, which are involved in the development of advanced technologies for the aerospace industry. The country has a strong tradition of innovation, and is a leader in the development of new materials, propulsion systems, and other technologies for aerospace applications.

3. Government support: The German government has a long history of supporting the aerospace industry, through initiatives such as research funding and export credits. This support has helped to nurture and grow the country's aerospace sector, and has enabled companies to invest in new technologies and capabilities.

4. Strong international partnerships: Germany has developed strong partnerships with other countries in the aerospace industry, including through joint ventures and collaborations with companies and research institutions around the world. This has helped to enhance the country's global reach and competitiveness in the aerospace market.

Overall, Germany's strong industrial base, advanced research and development capabilities, government support, and international partnerships have helped to make it a major player in the global aerospace industry.

Germany is home to a number of major aerospace companies, including:

1. Airbus: Airbus is a leading global aerospace company, with headquarters in Germany. The company is involved in the design, development, and production of a wide range of aircraft and aerospace systems, including commercial aircraft, military aircraft, helicopters and satellites.

2. MTU Aero Engines: MTU Aero Engines is a leading manufacturer of aircraft engines and components, with headquarters in Germany. The company produces a range of engines for commercial and military aircraft, as well as industrial gas turbines.

3. Siemens: Siemens is a global technology company that is involved in a wide range of industries, including the aerospace industry. The company produces a range of products and services for the aerospace market, including propulsion systems, avionics, and digital technologies.

4. Liebherr-Aerospace: Liebherr-Aerospace is a leading manufacturer of aerospace components and systems, with headquarters in Germany. The company produces a range of products for commercial and military aircraft, including air management systems, landing gear, and aircraft structures.

5. ZF Friedrichshafen: ZF Friedrichshafen is a global technology company that is involved in the production of a range of products and systems for the aerospace industry, including propulsion systems, aircraft structures, and avionics.

These are just a few examples of the major aerospace companies based in Germany. The country is home to a number of other aerospace companies and suppliers, which contribute to its strength in the global aerospace market.

In the aerospace context, Giotto is a European Space Agency (ESA) spacecraft that was launched in 1985 to study Comet Halley.

In the aerospace context, GLONASS stands for Global Navigation Satellite System, it is a space-based satellite navigation system that is operated by the Russian Aerospace Defense Forces and provides navigation, location and timing services to users worldwide.