Created in Adobe Photoshop with images gathered from public domain sources such as NASA’s Hubble Telescope Gallery or modified from my own works. See my other designs & artworks on various products from smartphone cases to duvet covers in my Society6, Redbubble, Fine Art America and Zazzle stores:

https://society6.com/drpen
http://www.redbubble.com/people/dr-pen
http://www.zazzle.com/art_by_dr_pen
https://fineartamerica.com/profiles/dr-pen/shop

Follow me on twitter for updates and more:
twitter.com/DrPen8