Not necessarily - some moons will be large enough to sustain their own atmosphere.  Jupiter's largest moon, Ganymede, for example has a thin atmosphere (not sufficient to support human life, but an atmosphere none-the-less).

I think it is all about atmosphere, and the fact that the moon doesn't have an atmosphere - so any bits of debris from comets or other space dust will hit the planet's surface at high enough force to cause craters, whereas most burn up before hitting our green and fertile land here on Earth.

Other planets are often large enough to have atmospheres of some description, so they are similarly protected.

As Yorkie Duffield1 says sniffiily back in May "We're cursed with fields of rape at the moment - used to make rapeseed oil.  Looks spectacular, but hellish for hayfever sufferers!"

I say Nay.  I think he and other patriotic hayfever sufferers should pause for a minute and think of the small sacrifice they can make for the greater good - namely that rapeseed oil may one day save the dodgy British economy!

Great chefs are already waxing lyrical over rapeseed oil, preferring it over olive oil for cooking.  And it is produced here!  I see the day when Britain is the World Capital of rapeseed oil production.  British farmers will at last stop moaning and soon start rubbing their hands with glee as the oil dollars roll in.

I say this not lightly - because I come from long family tree of hayfever sufferers myself.  Take my Uncle Alf for example - unlike me, he is a brilliant mathematician and professor.  And he has has come up with the ultimate 'cure' for hayfever which I donate for free here to all you snuffly, red eyed Duffields out there. It is this....

My Uncle Alf simply bungs up each nostril with great gloops of Vaseline.  Pollen can't get in.  Voila!  Hardly any hayfever symptoms!

But he hasn't stopped there.  He wants to eradicate all pollen from reaching his very large hooter and his piggy little eyes.  So he is now scouring the Internet for a vital piece of equipment...he is seeking a Belisha-Beacon-sized clear perspex globe that he plans to wear over his head during the offensive months.  I kid you not.  (Obviously this perspex globe is to be worn in addition to the Vaseline-packed nostrils for optimum effect.)

QED, as he snuffles merrily to anyone who will listen.

Duff, you are most welcome to use this my Uncle Alf's wizard cure for hayfever but you'll have to find your own answer to keep your flat cap attached to your perspex globe as you hike or bicycle round Yorkshire's previously green and verdant countryside.

Did they have long hair, folded up?
Or did they have crew cuts?  Or somewhere in between?

A lot of my friends have very healthy leg-pulling senses of humour so I don't know whether to fall for this one or not - They told me that....

Queen Elizabeth owns a branch of McDonald's, about a three or four hours drive outside London.

I can easily see Liz and Phil tucking in to a Crown of Lamb at Buck House but i can't see them tucking in to a happy meal - so I've resorted to asking you for the definitive answer...

Does the Queen really own a branch of McDonald's?   If so, where is it?