Each week, discover a new spectacular image obtained at CFHT .
Stars form out of the gravitational collapse of large clouds of interstellar gas and dust.
Originally very tenuous, the density of these clouds increases as they contract and a central star builds-up. As a consequence, the temperature at the center also increases as pressure goes up. At that stage, the original cloud of material as also dissipated, it becomes transparent. Most of it has been accreted by the star itself and the central object finally becomes visible to our telescopes. A star is born.