This monogram created in Illustrator was inspired by the NASA logo. I used the Juniper font for the letters (my initials). The 'planet' was made with a gradient and ellipse. I got the grain-ish texture from Adobe Stock and recolored it to match the blue tints of the planet. The planet's ring is another black ellipse stroke. To get it behind the planet, I duplicated the planet, erased the bottom half and arranged the layers respectively. The stars were made by transforming the star tool.