Mega Millions jackpot reaches $660 million
The Mega Millions grand prize is up to $660 million - the ninth largest in U.S. history.
No one has won the jackpot in 27 consecutive drawings over the course of the last three months.
The odd of winning are less than 1 in a 300 million - but some say that's still a chance.
A winner who chooses the cash option would get around $375 million.
