12 empty canvases and one day to paint or spray, 12 street artists created these space-themed artworks for the #GravityWithoutGravity project in collaboration with @THStreetArtTour – vote for your favourite via https://t.co/wpbxGUDgzr #streetart #graffiti pic.twitter.com/FqqTxZ0nB3

— ESA (@esa) May 18, 2018