If the Moon were to suddenly disappear altogether/disintegrate in to particles/shoot off 5 million miles, what effect would it have on
- the Earth's orbit round the Sun e.g. would it move in or out or even destructively destabilise it?
- on the length of the Earth's day i.e. increase or decrease it?
- on the continued viability of life on Earth e.g. loss of nocturnal illumination and stopping of the tides?