The two images show the central region of the old galaxy NGC 1386. On the left is the galaxy in visible light, taken with the Hubble Space Telescope. On the right is the same view, but combined with the image taken with the ALMA radio telescope. In both images the places where thousands of stars are being born, the young star clusters, are indicated by white circles. The clusters appear as faint points of brightness within each circle. In the visible light image you can also see dark regions, long filamentous strings, which pass close to, or end in the star clusters. These are streams of matter which carry the material used to form new stars. Although previously unknown, the same strings are shown as bright filaments, blueish regions- in the data obtained from ALMA. These filaments contain simple molecules, notably molecular hydrogen, which go into the formation of stars. Credit: HST/ ALMA. Composition: Gabriel Pérez Díaz (SMM, IAC)