I am using Gimp and I've created a 16x16 px image of a star. I am trying to use it as decoration for a Space Invader image I'm working on. I want it to keep it's wonderful blocky-ness and look like it's from an old video game. Instead, what's happening is it's becoming fuzzy and it looks terrible. An image of the star is below. That's what I want it to look like when it is inserted into the image, but it has to be bigger, since the image is 2560x1440.
Any help is greatly appreciated, I have been using GIMP for a long time, but for whatever reason, this is not working for me.