Lottery Checker

Hello. Some friends of mine played this week’s “New York Mega Millions” for 179 million USD$. Well, no one won, as you know, and we were wondering; do they need to buy a new ticket to partake in the next drawing even though no one won, or is this ticket still valid? Thanks!

I am Canadian and this is a canadian lottery , just want to know if they are generated automatically when you ask for a ticket and how much they cost for a regualr ticket?