3I/ATLAS, the third known interstellar object to date, is currently traveling through the Solar System and reached its closest point to the Sun yesterday. In the next days, 3I/ATLAS is barely visible from Earth. ESA's spacecraft JUICE, however, is now launching a dedicated observation campaign. With the help of the JUICE’s scientific instruments, researchers at the Max Planck Institute for Solar System Research (MPS) hope to learn more about the water on 3I/ATLAS.