Today's edition of Atomun, teleSUR's science program, begins with a look at the use of 3D printing in medical procedures; then the App of the Week, Neuronation: Memory Trainer" to improve memory concentration and intelligence; a report on T-VEC, a medicine based on a modified herpes virus used by scientists to cure skin cancer; the supermarket of the future; and finally, astronomers discover a collision between two high-speed knots of ejected matter inside a black hole.