nrao21df02_final

Artist's conception illustrates process seen in forming stars much more massive than the Sun. At top left, material is being drawn into the young star through an orbiting disk which generates a fast-moving jet of material outward. At top right, material begins coming in from another direction, and at bottom left, begins deforming the original disk until, at bottom right, the disk orientation -- and the jet orientation -- have changed. Credit: Bill Saxton, NRAO/AUI/NSF