Like a nuclear missile silo, my agency's Vatican file had its own doomsday file - a hardbound manila folder on which a typewritten sticky label had emblazoned in telex font capitals: WHAT TO DO IN CASE THE POPE DIES. While many of the instructions dated back to 1961 and could be safely ignored, it was still an interesting study in panic.

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It is thought to be just over 100m years old (Apollo 17 brought back material from the site, which allowed it to be dated), and it is reckoned by Dr Bottke to be the result of the moon encountering one of the first of Baptistina's progeny to arrive in the inner solar system.

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Ofsted also found one care team at North Yorkshire had 50 unallocated referrals, some of which dated back to March 2009, which were waiting to be looked at.

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