I knew I had to do this as soon as I saw the pictures of Galaxy Nail design. They looked pretty amazing and you won't believe how unbelievably easy is this design.
The colors I used are - Black, white, blue and red. Apart from that a clear top coat, glitter nail polish for stars and a sponge to have the cloudy 'milky way' effect.
Here's one of the YouTube video tutorial on how to make Galaxy Nail Design