Weather satellite satellite data. Collectively, weather satellites flown by the U.S., Europe, India, China, Russia, and Japan provide nearly continuous observations for a global weather watch. As early as 1946, the idea of cameras in orbit to observe the weather was being developed. This was due to sparse data observation coverage and the expense of using cloud cameras on rockets. By 1958, the early prototypes for TIROS and Vanguard (developed by the Army Signal Corps) were created. The first weather satellite, Vanguard 2, was launched on February 17, 1959. It was designed to measure cloud cover and resistance, but a poor axis
The Weather Channel 3, 2008, Landmark Communications put The Weather Channel and its assets up for sale. On July 6, 2008, NBC Universal, Bain Capital and Blackstone Group agreed to jointly purchase The Weather Channel from Landmark, making it the channel's first ownership change in 26 years. The sale was finalized on September 12, 2008. NBC Universal also owned NBC Weather Plus, a rival service which was carried by and featured content from the NBC television network's local network affiliates; that service announced its discontinuation three months later. Over-the-air digital subchannels carrying Weather Plus have since switched to the similarly formatted The Local