Russia is targeting UK space infrastructure, and in particular military satellites, on a weekly basis, according to the head of UK Space Command.

In an interview with the BBC, Maj Gen Paul Tedman said that Russia was “shadowing” UK satellites. Shadowing involves orbiting and aligning a satellite close to the target satellite, in order to be near enough to jam communications or intercept signals to steal critical information.

Tedman said Russia’s satellites had “payloads on board that can see our satellites and are trying to collect information from them”. He also confirmed that jamming of UK military satellites was taking place.

This involves broadcasting signals on the same frequencies as those used by satellites, in order to intentionally disrupt or overwhelm legitimate signals. It does not physically damage spacecraft, so as soon as the jamming signal is no longer being emitted, communications can be restored. The jamming of satellite signals can take place from the ground, ocean or air, as well as from space.

But what about other tactics that could be used to disrupt satellites? One thing not mentioned in relation to the attacks on British military satellites, is the use of lasers. These can be deployed to dazzle satellites’ onboard optical sensors. This can interfere with electronic circuity but would not cause lasting physical damage.

The most serious type of attack of course would be the use of a direct-ascent missile, which can be launched from the ground, sea or air, to destroy an orbiting satellite. Previous tests of this kind of........

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