6 out of the top 10 google searches are related to the end of the world. What a great opportunity to get into spiritual discussions with friends.
Just a couple simple questions could lead you easily into the gospel: What do you think about the end of the world? What do you think the Bible says? Where do you think you would go? Why?
Then you can transition into sharing the gospel by saying something like, "Do you want to know what God told us about how to be forgiven/go to heaven?"
Check out my blog as a way to use the internet and this topic to lead into the gospel. Beholding Glory
Step out and trust God and see how He comes through.