Dust as a Sun Shield (IMAGE) Center for Astrophysics | Harvard & Smithsonian Caption Simulated stream of dust launched between Earth and the Sun. This dust cloud is shown as it crosses the disk of the Sun, viewed from Earth. Streams like this one, including those launched from the Moon’s surface, can act as a temporary sunshade. Credit Credit: Ben Bromley/University of Utah Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.