When not showing live news coverage, NASA TV airs a variety of programming. Viewers may see views of the Earth from the International Space Station; replays of mission operations or news conferences; or episodes of produced programs.
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NASA TV (originally NASA Select) is the television service of the National Aeronautics and Space Administration (NASA). It is broadcast by satellite with a simulcast over the Internet. Local cable television providers across the United States and amateur television repeaters may carry NASA TV at their own discretion, as NASA-created content is considered a work of the U.S. government and is within the public domain.
NASA TV is also available via various cable, satellite, and
over-the-top media services around the world. The network was formally
created in the early 1980s to provide NASA managers and engineers with
real-time video of missions. NASA has operated a television service
since the beginning of the space program for archival purposes, and in
order to provide media outlets with video footage.
The network
airs a large amount of educational programming and provides live
coverage of an array of crewed missions (including the International
Space Station), robotic missions, and domestic and international
launches. The network completed its conversion from analog to digital
transmission in late 2005 following the launch of STS-114, ending a
period of dual analog and digital broadcasting, although some cable
television systems may still have transmitted in analog prior to the
U.S. digital television transition. The satellite link uses the DVB-S
system for transmission.
Programming
NASA TV carries a variety of regularly scheduled,
pre-recorded educational and public relations programming 24 hours a day
on its various channels. Programs include NASA Gallery, which features
photographs and video from NASA's history; Video File, which broadcasts
b-roll footage for news and media outlets.
As NASA TV is a service of the federal government of the United States, its programming is considered in the public domain for any organization or person to use as they see fit; for instance, the paid programming network LifehacksDRTV and WMGM-TV uses NASA TV's educational blocks to fulfill their FCC E/I requirements for their individual station or network affiliates. A list of known rebroadcasters is available on the website RabbitEars.