Like the well-known "red telephone," set up between Moscow and Washington in the aftermath of the Cuban Missile Crisis, the idea is to keep a misunderstanding or other miscommunication from escalating to a dangerous situation in space and here on Earth.
According to a US assistant secretary of state, before the hotline, "we had to send notifications to the Chinese via their ministry of foreign affairs. The chain would go from JSpOC [Joint Space Operations Center] to the Pentagon, to the State Department, to the US Embassy in Beijing, and then on to a contact there."
A similar, dedicated space hotline has existed between Russia and the US since the Cold War, but such a system is just now being set up with China, a growing power in space. There have been growing fears of warfare in space since China blew up a satellite during a test of an antisatellite weapons system in 2007. In a time of warfare, destroying orbiting satellites could provide a significant advantage by disabling coordination abilities and intelligence efforts.
The US and China now have a `space hotline` to avoid satellite warfare
23 November 2015
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Washington and Beijing are making efforts to avoid a crisis in space before it happens. The US and China have set up a direct link
