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The Global Positioning System (GPS) is a space-based satellite navigation system that provideslocation and time information in all weather, anywhere on or near the Earth, where there is an unobstructed…
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Global Precipitation Measurement is a joint mission between JAXA and NASA as well as other international agencies to frequently (every 3 hours) measure the Earth's atmospheric moisture. It is part…
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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…
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GLONASS is a radio-based satellite navigation system operated for the Russian government by the Russian Space Forces. It both complements and provides an alternative to the United States' Global Positioning…
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Global Monitoring for Environment and Security (GMES) is a joint initiative of the European Commission and European Space Agency, which aims at achieving an autonomous and operational Earth observation capacity.The…
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A mission designed to measure the Earth's gravity field, launched on march 2009. The Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) is an ESA satellite that was launched on…
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The mission, known as the Global-scale Observations of the Limb and Disk, or GOLD, involves imaging Earth's upper atmosphere from a geostationary orbit some 22,000 miles above the planet. The…
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The Google Lunar X PRIZE, abbreviated GLXP, sometimes referred to as Moon 2.0, is a space competition organized by the X Prize Foundation, and sponsored by Google. It was announced…
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The Greenhouse Gases Observing Satellite (GOSAT), also known as Ibuki, is the world's first spacecraft to measure the concentrations of carbon dioxide and methane, the two major greenhouse gases, from…
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Gossamer Deorbiter Sail: The purpose of this project is to develop a gossamer sail system that can be used for deorbiting satellites at end-of-life. The principle that the system will…
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GPS Block IIIA, or GPS III is the next generation of GPS satellites which will be used to keep the Navstar Global Positioning System operational. It is the U.S. Air…
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The GPS aided geo augmented navigation or GPS and geo-augmented navigation system (GAGAN) is an implementation of a regional satellite-based augmentation system (SBAS) by the Indian government. It is a…
