The artwork used in this banner is a detail from a collage by Ronnie Warner M.D. The main image is Starry Night by Vincent van Gogh. He buried dozens of modern astroimages, as well as some of his own in it. The final product was used by an online publication for high school students, and he was awarded the APOD (astronomy picture of the day) from NASA on June 15, 2010. Learn more about the artist here : https://www.astrorad.com/
Here is the original collage :
