[Semi-OT] End of the Universe

According to Doctor Who, the end of the universe occurs 100 trillion years in the future, more or less from now:
    100,000,000,000,000          in US numbers
or  100,000,000,000,000,000,000  in proper British numbers
BUT, scientists have recently recalculated when the end of the universe will occur, and it is much earlier than they had previously calculated. The universe will end in 1 quinvigintillion (a one followed by 78 zeros) years from now:
    1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,
    000,000,000,000,000,000,000,000,000,000   in US numbers
(Significantly more zeros in British numbers, but I don't know how many.)
The Doctor Who writers were only out by a "small" amount. ;-)
Of course, the Earth will be long long long gone by then - the Sun will swallow the Earth in a measley 7.59 billion years from now.