Name The Year: Cosmonaut Gagarin, first man to orbit earth died in a plane crash?

Questions

What was the name of the once Morrissey-fronted band in the 80's??

Who was the actress that made waves in 1984's "Splash"??

Who was the lead actress in the famous bomb "Grease 2"??

What craft toy involved cutting plastic figures, coloring them in, and then baking them in the oven??

What planet was Spock brought back to life on??