Author-made cover art for Griffon the Brush-Off Extended Cut. Digital collage using the following materials:

https://en.wikipedia.org/wiki/Jet_bundle
https://www.researchgate.net/profile/Melanie-Bertelson/publication/50366743/figure/fig3/AS:667629433917459@1536186669999/A-Lie-groupoid_Q320.jpg
https://i.pinimg.com/736x/3a/b4/e0/3ab4e08b419e375976c74bc3bac69b28—science-quotes-einstein.jpg
https://res.cloudinary.com/teepublic/image/private/s-6JIElEk_-/t_Preview/b_rgb:191919,c_limit,f_auto,h_630,q_90,w_630/v1606055582/production/designs/16374397_0.jpg
https://www.researchgate.net/profile/Eduardo-Guendelman/publication/310235557/figure/fig3/AS:644630165073922@1530703216404/Kruskal-Penrose-Manifold-of-the-Original-Einstein-Rosen-Bridge_Q320.jpg
https://quarkteam.files.wordpress.com/2020/06/image-2.png
https://www.researchgate.net/profile/Sascha-Vongehr/publication/51930058/figure/fig2/AS:305837676482560@1449928792021/The-cross-section-of-the-probability-sausage-as-seen-from-Bobs-perspective-a-Each.png
http://home.ustc.edu.cn/~gongsiqiu/_book/image/code.png
http://jetp.ac.ru/cgi-bin/dn/e_026_02_0400.pdf
https://www.gale.com/c/the-times-digital-archive
https://derpibooru.org/images/1391440
https://upload.wikimedia.org/wikipedia/commons/a/aa/Clarke_principal_triangulation_of_Britain_1860.jpg
https://elderscrolls.fandom.com/wiki/Liminal_Bridges
https://journals.ametsoc.org/view/journals/bams/54/11/1520-0477_1973_054_1163_dopapp_2_0_co_2.xml?tab_body=pdf
https://alexnld.com/wp-content/uploads/2018/12/PACK1026W_1.jpg
https://derpibooru.org/images/677364?q=mare+in+the+moon
https://derpibooru.org/images/2188902?q=mare+in+the+moon
https://images.vectorhq.com/images/previews/5da/burned-paper-psd-415016.png
https://img.pngio.com/burned-paper-png-png-image-burned-paper-png-800_525.png
http://adsabs.harvard.edu/pdf/1979LPI….10….9A
https://media.istockphoto.com/photos/blank-daily-newspaper-picture-id503149471?k=6&m=503149471&s=612x612&w=0&h=SdcUQeSezscWN1Nzk0iTB8yEvmUEq2AHJN19fg_qFZ4=
https://www.sciencedirect.com/science/article/pii/0019103574901444
https://marketplace.canva.com/MAB4YNySwUI/1/thumbnail_large/canva-hole-in-a-paper-MAB4YNySwUI.png
https://marketplace.canva.com/MACA3OLyAaQ/1/thumbnail_large/canva-close-up-view-of-a-burnt-hole-in-a-paper-MACA3OLyAaQ.png
https://marketplace.canva.com/MACGTcAt4FU/1/thumbnail_large/canva-close-up-view-of-a-burnt-hole-in-a-paper-MACGTcAt4FU.png
https://res.cloudinary.com/teepublic/image/private/s-6JIElEk_-/t_Preview/b_rgb:191919,c_limit,f_auto,h_630,q_90,w_630/v1606055582/production/designs/16374397_0.jpg


Photo created by Lullabyjack; a larger version can be found here.