The radiation from 2,500 young stars excites the atoms causing them to emit radiation themselves. This view of the very center of the Rosette Nebula spans 15 light years across. Credit: NASA/ESA Hubble Space Telescope
Space. .Mystery of the stars. . Burning lithium inside a star (artist's impression) Artist’s impression of a baby star still surrounded by a protoplanetary disc in which planets are forming. Using ESO’s very successful HARPS spectrograph, a team of astronomers has found that Sun-like stars which host planets have destroyed their lithium much more efficiently than planet-free stars.