"At three of these locations our investigations concluded that the noise should be mitigated through the installation of low noise surfacing materials when the existing surface is worn out, in accordance with our maintenance policy, " said an agency spokesperson.

BBC: Gloucester estate residents complain about M5 noise

It is extremely rare on earth as it is created during very active nuclear reactions, most commonly found on the surface of the sun, but here can only be found as a by-product of the maintenance of nuclear weapons.

CNN: Mining the moon for a nuclear future