1. Take a new file of 400 pixels,400 pixels, of resolution 72 dpi in the RGB mode.
2. Make a new layer fill the layer with black color
3. Select your Ellipse Tool under the Toolbar usually in your left side of the screen.
4. Then draw the perfect circle on your document hold shift while you are making it be symmetrical.
5. Now go to the Blending Option apply the following settings.
6. Your image will look like this.
7. Now select your Custom Shape Tool from the toolbar
.
8. And in the shape menu {top bar} select the nuclear shape.
9. Your image will look like this.
10. Now go to the Blending Option apply the following settings.
11. Your image will look like this.
12. Add some stars in your image.
13. Final Image.
