NASA TV (originally NASA Select) is the television network of the United States space agency, NASA. NASA TV is broadcast by satellite with a simulcast over the Internet. Local cable television systems across the U.S. may carry the public channel at their discretion, and it is broadcast by some amateur television repeaters. The network has been on the air for more than 25 years.[2]
The network airs a large amount of educational programming, and provides live coverage of an array of manned missions, including the Space Shuttle and ISS, robotic missions, 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/digital broadcasting, although some cable television system may still transmit in analog. The satellite link uses the DVB system for data transmission.
Channels
The NASA TV network operates four channels over the air, and the same four channels online. The NASA Public channel provides 24 hour broadcasting of live and recorded events and documentaries aimed toward the general public. The NASA Education channel provides space and science programming for schools, museums and other educational institutions. The NASA Media channel is dedicated to broadcast news organizations and other members of the press, featuring press release video, interviews, mission press conferences and other services. The final is the NASA Mission Operations channel, an encrypted feed for NASA employees.[1]
NASA TV in Canada
Prior to 2007, the Canadian Radio-television and Telecommunications Commission (CRTC) prohibited NASA TV from being aired by local satellite and cable systems, with the exception of specific broadcast events.[3] On April 20, 2007, the Commission issued a notice stating that after receiving an initial request from Mountain Cablevision and support from other Canadian broadcasters and members of the public, NASA TV had been added to the lists of eligible satellite services.[4]
Commercial carriers
Internet feeds
Non-NTV video streams
See also
References
External links
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