STK201440SA gap in a protoplanetary, or planet-forming, disk surrounding a young star.
STK201459SAn O-star just behind a young, cooler star and its swirling disk of planet-forming material.
FSU100012SThis illustration shows a group of asteroids and their orbits around the sun, compared to the planets.
FSU100015SA scene portraying the early stages of a solar system forming.
STK203314SIllustration of a supermassive black hole at the core of a young, star-rich galaxy.