The science, technology, engineering, and mathematics (STEM) workforce is at the core of the space industry—from the mathematicians and astronomers who analyze space to the engineers who design and build the launch vehicles that get us there. This workforce is enabled . . .
As of March 6, 2019, information was available about 38 nations that deployed and operated 465 spacecraft during 2018. The number of nations operating spacecraft grew 10% from 2017 to 2018, with 75 total nations operating spacecraft. While . . .
The majority of communications satellites deployed in 2018, 66% (85), were for commercial purposes. Civil government missions ranked . . .
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Global, dedicated, and secure communications networks are vital to governments, militaries, and agencies around the world. Increased demand for capacity—particularly secure connectivity using non-commercial frequency bands—continued to drive deployment of dedicated military communications satellite systems. The U.S. military bought significant capacity from commercial operators such as Intelsat and SES in 2014. However, the way the military buys the bandwidth has been criticized by commercial satellite communications services as expensive and outdated.
Dedicated and secure communications links are vital to defense agencies around the world. Increasing demand for capacity—particularly secure connectivity using non-commercial frequency bands—has driven the deployment of dedicated military communications satellites. The U.S. military buys a significant portion of its capacity from commercial operators such as Intelsat and SES. However, the United States also relies on military-specific systems such as the Wideband Global SATCOM (WGS) program, supplying dedicated communications to U.S. and allied military forces around the globe.
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GEO satellites provide a wide fixed coverage area, making them ideal for sending one signal to a large number of stationary antennas. There were ## fixed satellite services (FSS) satellites in orbit during 2011, providing DTH video, satellite radio, broadband internet, broadcast video distribution, and corporate network connectivity. The dominant providers of international FSS are Intelsat (## satellites), SES (##), Eutelsat (##), and Telesat (##).
Estimated 2011 revenue for satellite communications reached $## billion, #% higher than the $## billion for 2010. The satellite communications segment includes both fixed satellite services and mobile satellite services. FSS refers to the delivery of satellite communications to stationary ground receivers that can be moved from one location to another but do not work while in transit. MSS systems can maintain a communications link with a mobile receiver, and include applications such as satellite telephones or in-flight communications. Both types carry video, voice, and data.